A nature reserve _____ from a natural park usually in being smaller and having its sole purpose as the protecti...

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Lê Quỳnh Anh

30 tháng 6 2017

* Mark the letter A, B, C, or D on you answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions. If children are enjoying themselves and having fun during the activities, this is an indication that they feel at_________with the methods being used. A. crease B. ease C. release D. peace...

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#Mẫu giáo

1

DH

Dương Hoàn Anh

30 tháng 6 2017

Chọn B Câu đề bài: Nếu trẻ em được trải nghiệm bản thân và vui chơi trong các hoạt động, đây là dấu hiệu cho thấy chúng cảm thấy _________ với các phương pháp được sử dụng.

Đáp án B: sự thoải mải

Các đáp án còn lại:

A. nếp nhăn C. giải phóng D. hòa bình

To feel at ease with something: thoải mái, dễ chịu với cái gì.

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17 tháng 9 2019

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Endangered species There are three valid arguments to support the preservation of endangered species. Aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its...

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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Endangered species

There are three valid arguments to support the preservation of endangered species. Aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its diverse forms is reflected in the art and literature of every culture attaining symbolic status in the spiritual life of many groups. According to the proponents of the aesthetic argument, people need nature in all its diverse and beautiful forms as part of the experience of the world.

Another argument that has been put forward, especially by groups in the medical and pharmacological fields, is that of ecological self-interest. By preserving all species, we retain a balance of nature that is ultimately beneficial to humankind. Recent research on global ecosystems has been cited as evidence that every species contributes important or even essential functions that may be necessary to the survival of our own species. Some advocates of the ecological argument contend that important chemical compounds derived from rare plants may contain the key to a cure for one of the diseases currently threatening human beings. If we do not protect other species, then they cannot protect us.

Apart from human advantage in both the aesthetic and ecological arguments, the proponents of a moral justification contend that all species have the right to exist, a viewpoint stated in the United Nations World Charter for Nature, created in 1982. Furthermore, if humankind views itself as the stewards of all the creatures on Earth, then it is incumbent upon human beings to protect them, and to ensure the continued existence of all species. Moral justification has been extended by a movement called “deep ecology,” the members of which rank the biosphere higher than people because the continuation of life depends on this larger perspective. To carry their argument to its logical conclusion, all choices must be made for the biosphere, not for people.

The author mentioned all of the following as justifications for the protection of endangered species EXCEPT _______.

A. the natural compounds needed for medicines

B. the intrinsic value of the beauty of nature

C. the control of pollution in the biosphere

D. the right to life implied by their existence

#Mẫu giáo

1

DH

Dương Hoàn Anh

17 tháng 9 2019

Đáp án C.

Keywords: justification, protection, endangered species, EXCEPT.

Clue:

1. “important chemical compounds derived from rare plants may contain the key to a cure” (lý luận của trường phái sinh thái học).

2. many of the endangered plants and animals are particularly appreciated for their unique physical beauty” (lý luận thẩm mĩ học).

3. all species have the right to exist” (lý luận về đạo đức).

Phân tích:

A. The natural compounds needed for medicines: Các hợp chất tự nhiên cần thiết cho thuốc. (xem clue 1)

B. The intrinsic value of the beauty of nature: Giá trị thực chất của vẻ đẹp của tự nhiên. (xem clue 2)

C. The control of pollution in the biosphere: Kiểm soát ô nhiễm trong sinh quyển. (không có thông tin trong bài)

D. The right to life implied by their existence: Quyền sống được ngụ ý bởi sự tồn tại của chúng. (xem clue 3)

Ngoài đáp án C ra các đáp án khác đều được nêu trong bài đọc để lập luận cho việc bảo vệ các loài sinh vật đang bị đe doạ.

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Lê Quỳnh Anh

6 tháng 4 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. ENDANGERED SPECIES There are three valid arguments to support the preservation of endangered species. An aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its diverse forms...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

ENDANGERED SPECIES

There are three valid arguments to support the preservation of endangered species. An aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its diverse forms is reflected in the art and literature of every culture, attaining symbolic status in the spiritual life of many groups. According to the proponents of the aesthetic argument, people need nature in all its diverse and beautiful forms as part of the experience of the world.

Another argument that has been put forward, especially by groups in the medical and pharmacological fields, is that of ecological self-interest. By preserving all species, we retain a balance of nature that is ultimately beneficial to humankind. Recent research on global ecosystems has been cited as evidence that every species contributes important or even essential functions that may be necessary to the survival of our own species. Some advocates of the ecological argument contend that important chemical compounds derived from rare plants may contain the key to a cure for one of the diseases currently threatening human beings. If we do not protect other species, then they cannot protect us.

Apart from human advantage in both the aesthetic and ecological arguments, the proponents of a moral justification contend that all species have the right to exist, a viewpoint stated in the United Nations World Charter for nature, created in 1982. Furthermore, if humankind views itself as the stewards of all the creatures on Earth, then it is incumbent upon human beings to protect them, and to ensure the continued existence of all species. Moral justification has been extended by a movement called “deep ecology,” the members of which rank the biosphere higher than people because the continuation of life depends on this larger perspective. To carry their argument to its logical conclusion, all choices must be made for the biosphere, not for people.

The author mentions all of the following as justifications for the protection of endangered species EXCEPT ___________.

A. the natural compounds needed for medicines

B. the intrinsic value of the beauty of nature

C. the control of pollution in the biosphere

D. the right to life implied by their existence

#Mẫu giáo

1

DH

Dương Hoàn Anh

6 tháng 4 2017

Chọn C.

Đáp án C.

Dịch câu hỏi: Tác giả đề cập đến tất cả những điều sau đây như là biện minh cho việc bảo vệ các loài nguy cấp tuyệt chủng NGOẠI TRỪ _________

A. có thể tìm thấy ở đoạn 2.

B. có thể thấy ở dòng 2-3

D. có thể thấy ở dòng 17 “the right to exist”.

Riêng đáp án C “sự kiểm soát ô nhiễm” là điều không được nhắc tới trong toàn bài.

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Lê Quỳnh Anh

20 tháng 7 2019

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions. Endangered species There are three valid arguments to support the preservation of endangered species. Aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its diverse forms is...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Endangered species

There are three valid arguments to support the preservation of endangered species. Aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its diverse forms is reflected in the art and literature of every culture attaining symbolic status in the spiritual life of many groups. According to the proponents of the aesthetic argument, people need nature in all its diverse and beautiful forms as part of the experience of the world.

Another argument that has been put forward, especially by groups in the medical and pharmacological fields, is that of ecological self-interest. By preserving all species, we retain a balance of nature that is ultimately beneficial to humankind. Recent research on global ecosystems has been cited as evidence that every species contributes important or even essential functions that may be necessary to the survival of our own species. Some advocates of the ecological argument contend that important chemical compounds derived from rare plants may contain the key to a cure for one of the diseases currently threatening human beings. If we do not protect other species, then they cannot protect us.

Apart from human advantage in both the aesthetic and ecological arguments, the proponents of a moral justification contend that all species have the right to exist, a viewpoint stated in the United Nations World Charter for Nature, created in 1982. Furthermore, if humankind views itself as the stewards of all the creatures on Earth, then it is incumbent upon human beings to protect them, and to ensure the continued existence of all species. Moral justification has been extended by a movement called "deep ecology," the members of which rank the biosphere higher than people because the continuation of life depends on this larger perspective. To carry their argument to its logical conclusion, all choices must be made for the biosphere, not for people.

The author mentioned all of the following as justifications for the protection of endangered species EXCEPT_______.

A. the natural compounds needed for medicines

B. the intrinsic value of the beauty of nature

C. the control of pollution in the biosphere

D. the right to life implied by their existence

#Mẫu giáo

1

DH

Dương Hoàn Anh

20 tháng 7 2019

Đáp án C.

Keywords: justifications, protection, endangered species, EXCEPT.

Clue:

1. “important chemical compounds derived from rare plants may contain the key to a cure” (lý luận của trường phái sinh thái học).

2. many of the endangered plants and animals are particularly appreciated for their unique physical beauty” (lý luận thẩm mĩ học).

3. all species have the right to exist” (lý luận về đạo đức).

Phân tích:

A. The natural compounds needed for medicines: Các hợp chất tự nhiên cần thiết cho thuốc. (xem clue 1)

B. The intrinsic value of the beauty of nature: Giá trị thực chất của vẻ đẹp của tự nhiên. (xem clue 2)

C. The control of pollution in the biosphere: Kiểm soát ô nhiễm trong sinh quyển. (không có thông tin trong bài)

D. The right to life implied by their existence: Quyền sống được ngụ ý bởi sự tồn tại của chúng. (xem clue 3)

Ngoài đáp án C ra các đáp án khác đều được nêu trong bài đọc để lập luận cho việc bảo vệ các loài sinh vật đang bị đe dọa.

Kiến thức cần nhớ

intrinsic (adj) /intrinsik/: bản chất, thực chất

>< extrinsic (adj): nằm ở ngoài, ngoại lai

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Lê Quỳnh Anh

22 tháng 1 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now common fastening device noticed that small burrs attached to his dog's coat grasped the hairs by means of tiny hooks. This led him to invent a synthetic fabric whose surfaces mimic the clasping properties of this natural seedpod.

Animals and plants have evolved solutions to the kinds of problems that often interest engineers and designers. Much current research in material science is concerned with actively examining the natural world, especially at the molecular level, for inspiration to develop materials with novel properties. This relatively new field of study is sometimes known as biomimetics, since it consciously attempts to mimic nature.

Researchers have investigated several interesting areas. For example, they have studied how the molecular structure of antler bone contributes to its amazing toughness, how the skin structure of a worm contributes to its ability to crawl, how the sea cucumber softens its skeleton and changes shape so that it can squeeze through tiny gaps in rocks, or what gives wood its high resistance to impact. These investigations have led to several breakthroughs in the development of composite materials with remarkable properties.

Predictions for future inventions that may be developed from these lines of research include so-called smart structures that design and repair themselves in a similar way to a variety of processes in the natural world. For example, engineers have envisaged bridges that would detect areas heavily stressed by vehicle movement or wind. The bridge structure would then automatically add or move material to the weak areas until the stress is reduced. The same principle might be used to repair damaged buildings. Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources. The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials."

According to the passage, what do investigations in biomimetics suggest?

A. Biomimetics is not promising

B. Biomimetics may lead to the development of new creatures

C. Biomimetics may lead to useful inventions

D. Biomimetics has provided the new material for smart structures

#Mẫu giáo

1

DH

Dương Hoàn Anh

22 tháng 1 2017

Chọn C

Kiến thức: Đọc hiểu

Giải thích:

Theo như đoạn văn, những nghiên cứu trong mô phỏng sinh học đưa ra điều gì?

A. Mô phỏng sinh học thì không mấy hứa hẹn.

B. Mô phỏng sinh học có thể dẫn đến sự phát triển những sinh vật mới

C. Mô phỏng sinh học có thể dẫn đến những phát minh hữu dụng.

D. Mô phỏng sinh học đã cung cấp vật liệu mới cho các cấu trúc thông minh.

Thông tin: The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials".

Tạm dịch: Ảnh hưởng tiềm năng của nghiên cứu mô phỏng sinh học thì lớn đến nỗi thế kỷ hai mươi mốt có thể được biết đến như là “Thời đại vật liệu”

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Lê Quỳnh Anh

7 tháng 5 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now common fastening device noticed that small burrs attached to his dog's coat grasped the hairs by means of tiny hooks. This led him to invent a synthetic fabric whose surfaces mimic the clasping properties of this natural seedpod.

Animals and plants have evolved solutions to the kinds of problems that often interest engineers and designers. Much current research in material science is concerned with actively examining the natural world, especially at the molecular level, for inspiration to develop materials with novel properties. This relatively new field of study is sometimes known as biomimetics, since it consciously attempts to mimic nature.

Researchers have investigated several interesting areas. For example, they have studied how the molecular structure of antler bone contributes to its amazing toughness, how the skin structure of a worm contributes to its ability to crawl, how the sea cucumber softens its skeleton and changes shape so that it can squeeze through tiny gaps in rocks, or what gives wood its high resistance to impact. These investigations have led to several breakthroughs in the development of composite materials with remarkable properties.

Predictions for future inventions that may be developed from these lines of research include so-called smart structures that design and repair themselves in a similar way to a variety of processes in the natural world. For example, engineers have envisaged bridges that would detect areas heavily stressed by vehicle movement or wind. The bridge structure would then automatically add or move material to the weak areas until the stress is reduced. The same principle might be used to repair damaged buildings. Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources. The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials."

Which of the following is true about Velcro?

A. It was first used to remove dog hair from the owner’s coat

B. It exemplifies how a natural structure inspired a useful invention

C. The inventor of Velcro® was very famous before his invention

D. It has set a trend for tiny hooklike structures in synthetic fabric

#Mẫu giáo

1

DH

Dương Hoàn Anh

7 tháng 5 2018

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Câu nào sau đây nói đúng về Velcro®?

A. Nó lúc đầu được dùng để dùng để loại bỏ lông chó khỏi áo khoác của chủ sở hữu.

B. Nó minh họa một cấu trúc tự nhiên truyền cảm hứng cho một phát minh hữu dụng.

C. Nhà phát minh của Velcro® đã rất nổi tiếng trước cả khi có phát minh của anh ta.

D. Nó có một bộ các cấu trúc giống như các móc nhỏ trong vải tổng hợp

Thông tin: A more recent example of the inspiration given by nature is the invention of Velcro®.

Tạm dịch: Một ví dụ gần đây hơn về cảm hứng được tạo ra bởi thiên nhiên là phát minh của Velcro®.

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Lê Quỳnh Anh

26 tháng 2 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now common fastening device noticed that small burrs attached to his dog's coat grasped the hairs by means of tiny hooks. This led him to invent a synthetic fabric whose surfaces mimic the clasping properties of this natural seedpod.

Animals and plants have evolved solutions to the kinds of problems that often interest engineers and designers. Much current research in material science is concerned with actively examining the natural world, especially at the molecular level, for inspiration to develop materials with novel properties. This relatively new field of study is sometimes known as biomimetics, since it consciously attempts to mimic nature.

Researchers have investigated several interesting areas. For example, they have studied how the molecular structure of antler bone contributes to its amazing toughness, how the skin structure of a worm contributes to its ability to crawl, how the sea cucumber softens its skeleton and changes shape so that it can squeeze through tiny gaps in rocks, or what gives wood its high resistance to impact. These investigations have led to several breakthroughs in the development of composite materials with remarkable properties.

Predictions for future inventions that may be developed from these lines of research include so-called smart structures that design and repair themselves in a similar way to a variety of processes in the natural world. For example, engineers have envisaged bridges that would detect areas heavily stressed by vehicle movement or wind. The bridge structure would then automatically add or move material to the weak areas until the stress is reduced. The same principle might be used to repair damaged buildings. Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources. The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials."

As inferred from the passage, what would be the advantage of a product that mimics photosynthesis?

A. It could be used to create green plants

B. It could help to meet future energy needs

C. It could be an aid in repairing green areas

D. It could form the basis of twenty-first century materials

#Mẫu giáo

1

DH

Dương Hoàn Anh

26 tháng 2 2018

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Như đã đề cập từ đoạn văn, cái gì là lợi ích của sản phẩm mô phỏng sự quang hợp?

A. Nó có thể được sử dụng để tạo ra cây xanh.

B. Nó có thể giúp đáp ứng được nhu cầu năng lượng trong tương lai.

C. Nó có thể là một sự hỗ trợ trong việc tu sửa các không gian xanh.

D. Nó có thể tạo nên nền móng cơ bản của các loại vật liệu thế kỷ hai mươi mốt.

Thông tin: Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources.

Tạm dịch: Các vật liệu mới khác đã được tưởng tượng là các chất liệu sao chép sự quang hợp trong cây xanh để tạo ra những nguồn năng lượng mới.

Dịch bài đọc:

Thiên nhiên luôn cung cấp kích thích cho trí óc sáng tạo của con người. Những cỗ máy có khả năng bay thời kỳ đầu rõ ràng là một nỗ lực để mô phỏng sự tự do của loài chim. Các kiến trúc sư và kỹ sư thường chủ tâm tạo ra các tòa nhà có hình mẫu từ các hình thái được tìm thấy trong tự nhiên. Một ví dụ gần đây hơn về cảm hứng được tạo ra bởi thiên nhiên là phát minh của Velcro®. Nhà phát minh của thiết bị cài chặt phổ biến này đã nhận thấy rằng các gờ nhỏ gắn vào cái áo cho con chó của anh ta đã mắc vào lông nó bằng những cái móc rất nhỏ. Điều này dẫn dắt anh ta phát minh ra một loại vải tổng hợp mà bề mặt của nó bắt chước những đặc tính bám, móc của vỏ quả đậu ngoài tự nhiên.

Động vật và thực vật đã phát triển các giải pháp đối với nhiều loại vấn đề mà thường hấp dẫn các kĩ sư và các nhà thiết kế. Nhiều nghiên cứu hiện tại trong khoa học vật liệu thì đang tích cực nghiên cứu thế giới tự nhiên, đặc biệt là ở cấp độ phân tử, để lấy cảm hứng phát triển những vật liệu có tính chất mới lạ. Cái lĩnh vực nghiên cứu tương đối mới này thì thỉnh thoảng được biết đến như là mô phỏng sinh học, bởi vì nó cố gắng mô phỏng tự nhiên có ý thức.

Các nhà nghiên cứu đã nghiên cứu một vài mảng thú vị. Ví dụ, họ đã nghiên cứu làm thế nào mà cấu trúc phân tử của xương gạc nai góp phần vào sự dẻo dai đáng kinh ngạc của nó, hay làm thế nào mà cấu trúc da của một con sâu góp phần vào khả năng bò của nó, hoặc làm thế nào mà hải sâm làm mềm bộ xương của mình và thay đổi hình dạng để mà nó có thể ép mình đi qua những khoảng trống nhỏ trong đá, hoặc cái gì đem đến cho gỗ khả năng chịu đựng va đập cao. Những nghiên cứu này đã dẫn đến những bước đột phá trong sự phát triển của các vật liệu kết hợp với những tính chất vượt trội.

Những phỏng đoán về các phát minh trong tương lai cái mà có thể được phát triển từ những bước nghiên cứu này bao gồm cái gọi là các cấu trúc thông minh – cấu trúc tự thiết kế và sửa chữa theo cách giống như các quá trình trong thế giới tự nhiên. Ví dụ, các kỹ sư đã dự tính những cây cầu mà sẽ phát hiện ra các khu vực bị áp lực nặng do sự di chuyển của phương tiện hoặc gió. Cấu trúc của cầu sẽ ngay lập tức thêm hoặc di chuyển chất liệu đến những khu vực yếu cho đến khi áp lực giảm xuống. Cùng nguyên lý như vậy có thể được sử dụng để sửa chữa các tòa nhà bị hư hại. Các vật liệu mới khác đã được tưởng tượng là các chất liệu sao chép sự quang hợp trong cây xanh để tạo ra những nguồn năng lượng mới. Ảnh hưởng tiềm năng của nghiên cứu mô phỏng sinh học thì lớn đến nỗi thế kỷ hai mươi mốt có thể được biết đến như là “Thời đại vật liệu”.

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Lê Quỳnh Anh

22 tháng 12 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42. Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now...

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now common fastening device noticed that small burrs attached to his dog's coat grasped the hairs by means of tiny hooks. This led him to invent a synthetic fabric whose surfaces mimic the clasping properties of this natural seedpod.

Animals and plants have evolved solutions to the kinds of problems that often interest engineers and designers. Much current research in material science is concerned with actively examining the natural world, especially at the molecular level, for inspiration to develop materials with novel properties. This relatively new field of study is sometimes known as biomimetics, since it consciously attempts to mimic nature.

Researchers have investigated several interesting areas. For example, they have studied how the molecular structure of antler bone contributes to its amazing toughness, how the skin structure of a worm contributes to its ability to crawl, how the sea cucumber softens its skeleton and changes shape so that it can squeeze through tiny gaps in rocks, or what gives wood its high resistance to impact. These investigations have led to several breakthroughs in the development of composite materials with remarkable properties.

Predictions for future inventions that may be developed from these lines of research include so-called smart structures that design and repair themselves in a similar way to a variety of processes in the natural world. For example, engineers have envisaged bridges that would detect areas heavily stressed by vehicle movement or wind. The bridge structure would then automatically add or move material to the weak areas until the stress is reduced. The same principle might be used to repair damaged buildings. Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources. The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials."

The passage is primarily concerned with ______.

A. future research into the uses of Velcro

B. the effect of the Age of Materials on nature

C. the development of products based on nature

D. problems that preoccupy designers and engineers

#Mẫu giáo

1

DH

Dương Hoàn Anh

22 tháng 12 2018

Chọn C

Kiến thức: Đọc hiểu

Giải thích:

Bài đọc chủ yếu nói về .

A. nghiên cứ tương lai về việc sử dụng Velcro®

B. ảnh hưởng của thời đại vật liệu lên thiên nhiên

C. sự phát triển của các sản phẩm dựa trên thiên nhiên

D. những vấn đề khiến các nhà thiết kế và kĩ sư bận tâm

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Lê Quỳnh Anh

9 tháng 6 2017

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsThe observation of the skies has played a special part in the lives and cultures of peoples since the earliest of times. Evidence obtained from a site known as the Hole in the Rock, in Papago Park in Phoenix, Arizona, indicates that it might have been used as an observatory by a prehistoric people known as the Hohokam.The physical attributes of the...

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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The observation of the skies has played a special part in the lives and cultures of peoples since the earliest of times. Evidence obtained from a site known as the Hole in the Rock, in Papago Park in Phoenix, Arizona, indicates that it might have been used as an observatory by a prehistoric people known as the Hohokam.

The physical attributes of the site allow its use as a natural calendar/clock. The "hole" at Hole in the Rock is formed by two large overhanging rocks coming together at a point, creating a shelter with an opening large enough for several persons to pass through. The northeast-facing overhang has a smaller opening in its roof. It is this smaller hole that produces the attributes that may have been used as a calendar/clock.

Because of its location in the shelter's roof, a beam of sunlight can pass through this second hole and cast a spot onto the shelter's wall and floor. This spot of light travels from west to east as the sun moves across the sky. It also moves from north to south and back again as the Earth travels around the Sun. the west-to-east movement could have been used to establish a daily clock, much like a sundial, while the north-to-south movement could have been used to establish a seasonal calendar.

The spot first appears and starts down the surface of the wall of the shelter at different times of the morning depending on the time of the year. The spot grows in size from its first appearance until its maximum size is achieved roughly at midday. It then continues its downward movement until it reaches a point where it jumps to the floor of the shelter. As the Sun continues to move to the west, the spot continues to move across the shelter floor and down the butte, or hill, toward a group of small boulders. If a person is seated on a certain one of these rocks as the spot reaches it, the Sun can be viewed through the calendar hole. This occurs at different times in the afternoon depending on the time of year.

From which of the following can the time of year be determined?

A. The movement of the spot of light from west to east.

B. The speed with which the spot of light moves.

C. The movement of the spot of light from north to south.

D. The size of the sport of light at midday.

#Mẫu giáo

1

DH

Dương Hoàn Anh

9 tháng 6 2017

C Đoạn 3: “The west-to-east movement could have been used to establish a daily clock, much like a sundial, while the north-to-south movement could have been used to establish a seasonal calendar.” = Chuyển động tây-đông có thể đã được dung để lập đồng hồ ngày, như một đồng hồ mặt trời, trong khi chuyển động bắc- nam có thể đã được dùng để tạo ra lịch theo mùa.

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