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29 tháng 11 2017

☕Viết lại câu với từ gợi ý ʕ •ᴥ•ʔ
❤ Exercise 2
1. You'll have to make the speech instead of Marry. (stand)

You'll have to stand for Mary to make the speech.

2. I'm always happy to live with my family. (happiness)

It's always my happiniess to live with my family.

3. He climbed the tree because he wanted to have a better view. (order)

He climbed the tree in order to have a better view.

4. You can stay here for the night. (put)

You can out yourself here for the night.

5. My mother is quite different from my grandmother. (as)

My mother is not as the same as my grandmother.

16 tháng 12 2021

Bài 4 : 

\(n_{CO_2}=\dfrac{3.3}{44}=0.075\left(mol\right)\Rightarrow m_C=0.075\cdot12=0.9\left(g\right)\)

\(n_{H_2O}=\dfrac{1.8}{18}=0.1\left(mol\right)\Rightarrow n_H=0.1\cdot2=0.2\left(mol\right)\)

\(n_O=\dfrac{1.5-0.9-0.2}{16}=0.025\left(mol\right)\)

CTHH có dạng : CxHyOz

\(x:y:z=0.075:0.2:0.025=3:8:1\)

CTHH đơn giản nhất : C3H8O

Bài 5 : 

Tỉ lệ thể tích tương ứng với tỉ lệ số mol nên : 

\(V_{CH_4}=a\left(l\right),V_{C_2H_6}=b\left(l\right)\)

\(CH_4+2O_2\underrightarrow{^{^{t^0}}}CO_2+2H_2O\)

\(C_2H_6+\dfrac{7}{2}O_2\underrightarrow{^{^{t^0}}}2CO_2+3H_2O\)

\(V_{hh}=a+b=3.36\left(l\right)\left(1\right)\)

\(V_{CO_2}=a+2b=4.48\left(l\right)\left(2\right)\)

\(\Rightarrow a=2.24,b=1.12\)

\(\%V_{CH_4}=\dfrac{2.24}{3.36}\cdot100\%=66.67\%\)

\(\%V_{C_2H_6}=33.33\%\)

Tham khảo:

Thuộc tính rõ ràng của các loài chó sói là bản chất của một động vật ăn thịt một kẻ săn mồi đáng sợ, và tương ứng với nó đó là sự liên quan mật thiết với sự nguy hiểm, phá hoại, gian ác vừa làm cho sói là biểu tượng của nam chiến binh trên một phương diện và là ma quỷ trên một phương diện khác. Chó sói là loài động vật ăn thịt đáng sợ với kỹ năng săn mồi sắc bén một cách có tổ chức với phương pháp tấn công cắn xé liên tiếp con mồi cho đến chết, và tiếng tru hú kéo dài trong đêm tối. Chúng thường được nhắc đến trong các truyền thuyết dân gian. Với nhiều nền văn hóa, chó sói tượng trưng cho sự dữ tợn, gian ác, những bí ẩn đen tối hắc ám và sự ác độc. Tuy nhiên, nơi khác, chúng rất được coi trọng và tượng trưng cho lòng sự nam tính, lòng dũng cảm, tinh thần tổ chức, phối hợp, kỷ luật, chiến lược, sự kiên trì.

HT

26 tháng 2 2022

Tham kảk·

Với nhiều nền văn hóa, chó sói tượng trưng cho sự dữ tợn, gian ác, những bí ẩn đen tối hắc ám và sự ác độc. Tuy nhiên, nơi khác, chúng rất được coi trọng và tượng trưng cho lòng sự nam tính, lòng dũng cảm, tinh thần tổ chức, phối hợp, kỷ luật, chiến lược, sự kiên trì.

Bài 1:

Theo đề, ta có phương trình

\(2-a-5a-7=\left(2-a\right)\cdot4+10a-7\)

=>-6a-5=4(2-a)+10a-7

=>-6a-5=8-4a+10a-7=6a+1

=>-12a=6

hay a=-1/2

Bài 2:

a: Để A=0 thì x-1=0 và 2y+3=0

=>x=1 và y=-3/2

b: Để B=0 thì x+6=0 và y-2=0

=>x=-6 và y=2

7 tháng 9 2021

1. Yesterday I saw Jaden on my way back home.

2. What did you do last Monday? You look tired when you come to our house.

3. Linda didn't eat anything becoz  she was full

4, The cats went out with him when he went shopping. They looked happy.

5.Didn't you and your classmate  study the lesson?

REWRITE THESE SENTENCES WITHOUT CHANGING THEIR MEANING(VIẾT LẠI CÂU SAO CHO NGHĨA KHÔNG THAY ĐỔI SỬ DỤNG CÁC TỪ GỢI Ý)PART 1 9.This exercise is very difficult and I can’t do it.  This exercise is too………………………………………………….10.How much beef do you want?How much beef would ………………………………………………11.There are three floors in my new house.My new house ………………………………………………..12.I cycle to school every day.I go  ……………………………………………………13.What’s your brother’s job? ~ A doctor.What...
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REWRITE THESE SENTENCES WITHOUT CHANGING THEIR MEANING

(VIẾT LẠI CÂU SAO CHO NGHĨA KHÔNG THAY ĐỔI SỬ DỤNG CÁC TỪ GỢI Ý)

PART 1

9.This exercise is very difficult and I can’t do it.

  This exercise is too………………………………………………….

10.How much beef do you want?

How much beef would ………………………………………………

11.There are three floors in my new house.

My new house ………………………………………………..

12.I cycle to school every day.

I go  ……………………………………………………

13.What’s your brother’s job? ~ A doctor.

What ……………………………………………………………….

14. Phong has a sister. Her name is Nhung.

Nhung ………………………………………………………………

15. Does Phong’s school have forty classrooms ?

     Are ………………………………………....................................

16. Mr Minh has a son, Trung.                               

      Mr Minh ..............................................................................................

17. Huyen walks to school every afternoon.           

     Huyen goes .......................................................................................

18. Phuong has a brother, Nam.

     Phuong is ………………………………………………………………………..

19. My father usually drives to work.

     My father usually goes ……………………………………………………….

20.Does your have twenty-five students?

->  Are there.........................................................................?

21.   His teeth are small and white.

-> He has ...................................................................................................

22.   Phuong has a brother, Nam

-> Phuong is ....................................................................................................

23.   The girl is beautiful.

-> She is...................................................................................................

24. How about going to the zoo?

Lets ………………………………………………………………………..

25. How much are these shoes?

How much do …………………………………………………….?

Giúp em với ạ!

7
30 tháng 11 2021

tách đc ko?

30 tháng 11 2021

Học thì này rồi mà quên cách làm rồi , mới cả bài dài quá ạ :v

Exercise 1: Make the meaningful sentences with the words given.( Dùng từ gợi ý viết thành câu hoàn chỉnh)1/ You / mind/ if/ smoke / here ?2/ It/ hot/ mind/ open/windows? ..3/ Would/mind/if/take/ a photo4/ Do/mind/if/sit/in front/you ?Exercise 2: Combine a pair of sentences using ING participles or ED participles.a/ The house belongs to my uncle. It is built of wood.b/ The girl is intelligent. She sits next to me.Exercise 3: Rewrite the sentences with the words given so that it remains...
Đọc tiếp

Exercise 1: Make the meaningful sentences with the words given.( Dùng từ gợi ý viết thành câu hoàn chỉnh)

1/ You / mind/ if/ smoke / here ?

2/ It/ hot/ mind/ open/windows? ..

3/ Would/mind/if/take/ a photo

4/ Do/mind/if/sit/in front/you ?

Exercise 2: Combine a pair of sentences using ING participles or ED participles.

a/ The house belongs to my uncle. It is built of wood.

b/ The girl is intelligent. She sits next to me.

Exercise 3: Rewrite the sentences with the words given so that it remains the meaning.

1/ Keeping the environment clean is very important .

-> It’s ...............................................

2/ They will show the time machine to the public when they finish it.

-> The time machine....................................................................

3/ He was delighted to receive his aunt’s letter.

-> He was delighted that.............................

4/ Old car tires are recycled to make shoes and sandals.

-> .............................................................................................

*EX4.Give the correct form of the verbs in brackets:

1.Lan (finish) her homework for 2 hours. ->………………..

2.What (invent) by Alexander Gramha Bell?->…………….

3.Minh (not/ clean) the class yet.->…………….

4.Last year, Mai (visit) Hue.->……………..

5.Lan said she (want) to visit Da Lat->…………….

6.It’s easy (learn) English->………………

7.Mai likes (watch) TV->…………….

8.Would you mind (turn) off the light?->……………

9.Would you mind if I (close) the door?->……………

10.I’m not strong enough (carry) this bag.->………….

1
20 tháng 5 2021

Exercise 1: Make the meaningful sentences with the words given.( Dùng từ gợi ý viết thành câu hoàn chỉnh)

1/ You / mind/ if/ smoke / here ? Would you mind if I smoked here?

2/ It/ hot/ mind/ open/windows? ..It is hot. Would you mind opening the windows?

3/ Would/mind/if/take/ a photo Would you mind if I took a photo?

4/ Do/mind/if/sit/in front/you ? Do you mind if I sit in front of you?

Exercise 2: Combine a pair of sentences using ING participles or ED participles.

a/ The house belongs to my uncle. It is built of wood.

The house belonging to my uncle is built of wood

b/ The girl is intelligent. She sits next to me.

The girl sitting next to me is intelligent

Exercise 3: Rewrite the sentences with the words given so that it remains the meaning.

1/ Keeping the environment clean is very important .

-> It’s very important to keep the environment clean

2/ They will show the time machine to the public when they finish it.

-> The time machine will be shown to the public when they finish it

3/ He was delighted to receive his aunt’s letter.

-> He was delighted that his aunt sent them a letter

4/ Old car tires are recycled to make shoes and sandals.

-> people recycle old car tires to make shoes and sandals

*EX4.Give the correct form of the verbs in brackets:

1.Lan (finish) her homework for 2 hours. -> has been finishing

2.What (invent) by Alexander Gramha Bell?-> was invented

3.Minh (not/ clean) the class yet.-> haven't cleaned

4.Last year, Mai (visit) Hue.->…visited…………..

5.Lan said she (want) to visit Da Lat->…wanted………….

6.It’s easy (learn) English->…to learn……………

7.Mai likes (watch) TV->…watching………….

8.Would you mind (turn) off the light?->…turning…………

9.Would you mind if I (close) the door?->……closed………

10.I’m not strong enough (carry) this bag.->…to carry……….

Exercise 2: Viết lại câu thì quá khứ đơn sử dụng từ gợi ý đã cho.1. Yesterday/I/see/Jaden/on/way/come home.2. What/you/do/last Monday/You/look/tired/when/come/our house.3. Linda/not/eat/anything/because/full.4. cats/go/out/him/go shopping//They/look/happy.5. You and your classmates/not/study/lesson? Exercise 3: Chia các động từ sau ở thì quá khứ đơn.1. I _____ at my mom’s home yesterday. (stay)2. Hannah ______ to the theatre last Sunday. (go)3. I and my classmates...
Đọc tiếp

Exercise 2: Viết lại câu thì quá khứ đơn sử dụng từ gợi ý đã cho.

1. Yesterday/I/see/Jaden/on/way/come home.

2. What/you/do/last Monday/You/look/tired/when/come/our house.

3. Linda/not/eat/anything/because/full.

4. cats/go/out/him/go shopping//They/look/happy.

5. You and your classmates/not/study/lesson?

 

Exercise 3: Chia các động từ sau ở thì quá khứ đơn.

1. I _____ at my mom’s home yesterday. (stay)

2. Hannah ______ to the theatre last Sunday. (go)

3. I and my classmates ______ a great time in Da Nang last year. (have)

4. My holiday in California last summer ______ wonderful. (be)

5. Last January I _____ Sword Lake in Ha Noi. (visit)

6. My grandparents ____ very tired after the trip. (be)

7. I _______ a lot of gifts for my older brother. (buy)

8. James and Belle _______ sharks, dolphins and turtles at Vinpearl aquarium. (see)

9. Gary _____ chicken and rice for lunch. (eat)

10. We ____ about their holiday in Ca Mau. (talk)

4

Exercise 3: Chia các động từ sau ở thì quá khứ đơn.

1. I __stayed___ at my mom’s home yesterday. (stay)

2. Hannah ___went___ to the theatre last Sunday. (go)

3. I and my classmates ___had___ a great time in Da Nang last year. (have)

4. My holiday in California last summer ___was___ wonderful. (be)

5. Last January I ___visited__ Sword Lake in Ha Noi. (visit)

6. My grandparents __were__ very tired after the trip. (be)

7. I ___bought____ a lot of gifts for my older brother. (buy)

8. James and Belle ___saw____ sharks, dolphins and turtles at Vinpearl aquarium. (see)

9. Gary ___ate__ chicken and rice for lunch. (eat)

10. We __talked__ about their holiday in Ca Mau. (talk)

21 tháng 1 2022

Ex 2

1 Yesterday I saw Jaden on my way back home.

2 What did you do last Monday? You look tired when you come to our house.

3 Linda didn't eat anything because  she was full

4 The cats went out with him when he went shopping. They looked happy.

5 Didn't you and your classmate  study the lesson?

Ex 3

1. I ___stayed__ at my mom’s home yesterday. (stay)

2. Hannah ___went___ to the theatre last Sunday. (go)

3. I and my classmates __had____ a great time in Da Nang last year. (have)

4. My holiday in California last summer ___was___ wonderful. (be)

5. Last January I ___visited__ Sword Lake in Ha Noi. (visit)

6. My grandparents __were__ very tired after the trip. (be)

7. I ____bought___ a lot of gifts for my older brother. (buy)

8. James and Belle ____saw___ sharks, dolphins and turtles at Vinpearl aquarium. (see)

9. Gary __ate___ chicken and rice for lunch. (eat)

10. We __talked__ about their holiday in Ca Mau. (talk)

17 tháng 3 2016

Do you do morning exercise everyday?

17 tháng 3 2016

everyday do you do morning exercise