Read the passage and choose the correct answer to complete the sentence:
A UFO (Unidentified Flying Object) is an object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.
Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.
Studies estimate that 50 % -90 % of all reported UFO sightings are identified later . Usually 10 % -20 % are never identified . Studies also show that very few UFO sightings are hoaxes (people trying to trick other people). Most UFOs are actually natural or man - made objects that looked strange . % -90 % UFOs are identified as one of three different things: astronomical causes (for example: planets , stars , or meteors ) ; aircraft , balloons 10 % -20 % of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)
1. What does the word "igure out" in paragraph 1 mean?
A. observe B. explain C. calculate D. require
2. Another word used to describe a UFO is ………………….
A. spacecraft B. astronaut C. flying saucer D. cooking oil
3. How many percents of all reported UFO sightings are not identified?
A. 10 % -20 % B. 20 % -30 % C. 30 % -50 % D. 80 % -90 %
4. Most of UFOs are identified as one of the following things except .
B. balloons C. clouds D. rains A. stars
5. Which of the following sentences is NOT true?
A. UFO means Unidentified Flying Object.
B. UFO is often used to talk about alien spaceships.
C. Many UFO sightings are hoaxes.
D. Over half of all reported UFO sightings are identified
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29. What does the word “figure out” in paragraph 1 mean?
A. observe B. explain C. calculate D. require
30. Another word used to describe a UFO is _________.
A. spacecraft B. astronaut C. flying saucer D. cooking oil
31. Most of UFOs are identified as one of the following things EXCEPT _________.
A. stars B. balloons C. clouds D. rains
32. Which of the following sentences is NOT true?
A. UFO means Unidentified Flying Object.
B. UFO is often used to talk about alien spaceships.
C. Many UFO sightings are hoaxes.
D. Over half of all reported UFO sightings are identified.
A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.
Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.
Studies estimate that 50%-90% of all reported UFO sightings are identified later. Usually 10%-20% are never identified. Studies also show that very few UFO sightings are hoaxes (people trying to trick other people). Most UFOs are actually natural or man-made objects that looked strange. 80%-90% UFOs are identified as one of three different things: astronomical causes (for example: planets, stars, or meteors); aircraft; balloons 10%-20% of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)
1.What does the word “figure out” in paragraph 1 mean?
A. observe B. explain C. calculate D. require
2.Another word used to describe a UFO is.......
A.spacecraft B.astronaut C.flying saucer D.cooking oil
3.How many percents of all reported UFO sightings are not identified
A. 10%-20% B.20%-30% C.30%-50% D.80%-90%
4.Most of UFOs are identified as one of the following things except......
A.stars B.balloons C.clouds D.rains
5.Which of the following sentences is not true?
A.UFO means Unidentified Flying Object
B.UFO is often used to talk about alien spaceships
C.Many UFO sightings are hoaxes
D.Over half of all reportes UFO sighting are identified
41. UFO is an unidentified flying object.
42. The Earth we live on which is live planet. cảm thấy câu này sai sao ấy :'(
43. Shooting star is the synonym of falling star or meteor.
44. He feels very healthy. He's in excellent physical condition.
45. The woman said that she saw a UFO and two aliens in it.
41. UFO / flying / an / object / is / unidentified /.
-> UFO is an unidentified flying object.
42. Earth / we / the / on which / is / live / planet /.
-> The planet we live on which is Earth.
43. The synonym / is / of falling / shooting star / meteor / star or /.
-> The synonym of falling star is meteor or shooting star. < Mình không chắc câu này lắm=( >
44. He / healthy. He’s / excellent physical / feels very / condition / in /.
-> He feels very healthy. He’s in excellent physical condition.
45. The woman / in it / a UFO / said that / saw / aliens / she / and two /.
-> The woman said that she saw a UFO and two aliens in it.
Tham khảo
Đề 1
Hi Jimmy,
Teenagers in Viet Nam use the Internet for many things. In learning, the Internet helps us to find information for our presentation. We find a lot of interesting ideas and beautiful pictures to make our presentation more impressive. After school, the Internet gives us lots of games for entertainment. I myself like English interactive games on the Internet. In communication, the Internet helps us to keep in touch with friends and maintain our relationships. We love the Internet. What about in the US?
Please write and let me know.
Your friend,
Hai
Choose the best answer to complete each of the following sentences
1. A ___________ is a house which was built for rich people.
A. motorhome B. castle C. houseboat D. factory
2. People will have future robots ___________chores such as cleaning and cooking.
A. do B. did C. make D. get
3. In the future, there will be many robots that are designed to look ___________children.
A. on B. at C. for D. after
4. A ___________is any object flying in the sky which cannot be identified by the person who sees it.
A. plane B. UFO C. boat D. skyscraper
5. People will ___________on the moon in the future. A. living B. live C. are live D. be live
6. My family and I ___fly to Singapore on our holiday. A. will B. won’t be C. will be D. might be
7. Sarah didn’t eat lunch today, so I think she ___________hungry soon.
A. will be B. won’t C. won’t be D will
8. John isn’t in class today. I think he ___sick.A. might B. might be C. will D. will be
9. A: “Where are you going for your holidays?”
B: “I’m sure not sure. I ___________go to Italy.?
A. Might B. might be C. will D. will be
10. A: ___________you talk to Mr. Wilson.
B: No, I ___________
A. won’t / will B. will / won’t C. will be / won’t be D. will / will
Choose from A, B, C, or D the one that best answers each of the questions.
A pilot cannot fly by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot how fast nearby planes are moving. The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar, however, the waves are radio waves instead of sound waves. Radio waves travel at the speed of light, about 300,000 kilometers in one second. A radar set sends out a short burst of radio waves. Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set, a trained technician can determine the distance between the radar set and other objects. The word “radar”, in fact, gets its name from the term “radio detection and ranging”. “Ranging” is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots, radar is essential for air traffic control, tracking ships at sea, and for tracking weather systems and storms.
51. What is the main topic of this passage?
A. The nature of radar. B. History of radar. C. Alternatives to radar. D. Types of ranging.
52. According to the passage, what can radar detect besides location of objects?
A. Shape B. Size C. Speed D. Weight
53. The word “exemplified” in the passage can be replaced by_________.
A. “specified” B. “resembled” C. “illustrated” D. “justified”
54. The word “shouts” in the passage most closely means_________.
A. “exclaims” B. “yells” C. “shoots D. “whispers”
55. Which of the following words best describes the tone of this passage?
A. argumentative B. explanatory C. humorous D. imaginative
56. According to the passage, the distance between a radar set and an object can be determined by_________.
A. the time it takes for a burst of radio waves to produce echoes when the waves bounce off the object
B. the term “ranging” used for detection of the distance between an object and the radar set
C. the time it takes for the radio waves to produce echoes and bounce off the object
D. the time it takes for the echoes produced by the radio waves to return to the radar set
57. Which type of waves does radar use?
A. tidal B. sound C. heat D. radio
58. The word “tracking” in the passage most closely means_________.
A. sending B. searching for C. ranging D. repairing
59. Which of the following would most likely be the topic of the next paragraph?
A. A history of flying. B. Other uses of radar. C. The technology used by pilots. D. Uses of some technology.
60. What might be inferred about radar?
A. It takes the place of a radio. B. It has improved navigational safety. C. It was developed from a study of sound waves. D. It gave birth to the invention of the airplane.
Làm bài này rối não quá
#Yumi
1. C
2. C
3. A
4. D
5. C