Biết AC=6, BH=32/5. Tính AB?

Câu 1: Để xóa nhiều trang không liên tiếp, ta cần giữ phím gì trong khi chọn trang chiếu?

A. Alt

III. Complete the sentences with because/ as/ since/ if/ when, or so.

1. We decided to go out to eat _______ we had no food at home.

2. He has a very important job _______ he is particularly well-paid.

3. Can I borrow that book _______ you’ve finished it?

4. No one was watching the television _______ I switched it off.

5. _______ she changed a lot, we didn’t recognize her.

6. _______ you’ve ready, we can start now.

7. I’m going away for a few days, I’ll phone you _______ I get back.

8. You should inform the police _______ your bicycle is stolen.

9. Mathew went to bed _______ it was too late to go out.

10. _______ you drive without driving license, you’re breaking the law.

11. ________the weather was bad, they delayed their trip.

12. He will buy a new car _______ he saves up.

13. I can’t drive fast _______ the street is very crowded.

*Fill in the blanks with proper words, then answer the following questions.

scientists/ pollution/ serious/ factories exhaust/ reduce/ require/ percentage

Everyone wants to reduce (1) _______. But the pollution problem is as complicated as it is (2) _______. It is complicated because much pollution is caused by things that benefit people. For example, (3) _______ from automobile caused large (4) _______ of air pollution. But the automobile provides transportation to millions of people. (5) _______ discharge much of the material that pollutes air and water, but factories give employment to a large number of people.

Thus, to end or greatly (6) _______ pollutions immediately, people would have to stop using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduces in several ways, (7) _______ and engineers can work to find ways t lessen the amount of pollution that such things as automobiles and factories cause. Government can pass and enforce laws that (8) _______ businesses and individuals to stop, or cut down on certain polluting activities.

Questions:

1) Do things that benefit people bring about pollution?

…………………………………………………………………………………………………………………………….….

2) Is it complicated to reduce pollution? Why or Why not?

…………………………………………………………………………………………………………………………….….

3) Who can find ways to lessen the amount of pollution?

…………………………………………………………………………………………………………………………………….….

4) What can the Government do to reduce pollution?

…………………………………………………………………………………………………………………………………….….

V. Complete each sentence of the following letter.

Dear Mr. Smith,

1. I write/ complain/ dirt/ smoke/ come/ your factory chimneys.

……………………………………………………………………………………………………………….….

2. Two days ago/ I decide/ do / my washing.

…………………………………………………………………………………………………………………….….

3. I wash/ sheets/ put/ out/ dry/ it/ be/ nice sunny day/ there/ be/ breeze.

……………………………………………………………………………………………………………………………………….….

4. When I take washing in/ I be/ horrified/ discovered/ it/ cover/ dirty marks.

……………………………………………………………………………………………………………….….

5. I/ assume/ breeze/ I/ mention/ carry/ dirt/ chimneys.

…………………………………………………………………………………………………………………………….….

6. This be/ not only/ because/ sheets/ but because/ we/ two small children/ who be make/ breathe/ same air.

……………………………………………………………………………………………….….

……………………………………………………………………………………………………………………….….

7. Until this incident/ I think/ chimneys/ be safe/ clean.

…………………………………………………………………………………………………………………………………….….

8. I already/ write/ local Member of Parliament/ this matter.

……………………………………………………………………………………………………………………………….….

9. Furthermore/ I must warn you/ I/ write/ local newspaper/ tomorrow.

…………………………………………………………………………………………………………………………….….

10. I/ look forward/ receive/ reply.

……………………………………………………………………………………………………………….….

Yours sincerely

Mrs. Jennifer Hunter

II. Match a line in column A with a line in column B to make a meaningful

Nối : ( Vd : 1a 2b ,... )

1.If people use public transport, a. I can’t sleep.

2.You’ll learn English more easily. b. will you give her flowers?

3.If they don’t give him the job, c. if he does exercise regularly.

4.If I drink coffee at night, d. I don’t know what he will do.

5.You will speak English well e. there will be less pollution

6.If you see her f. if someone enters the building.

7.The alarm goes off g. if you have more practice.

8. Henry may lose weight h. if you study a little every day.

1.____; 2.____; 3.____; 4.____; 5.____; 6.____; 7.____; 8.____.

I. From each number, pick out the word whose underlined part is pronounced differently from the others.

1. A. happy B. hour C. high D. hotel

2. A. so B. coat C. note D. bottom

3. A. put B. luck C. lung D. drunk

4. A. bare B. car C. card D. farm

5. A. come B. love C. women D. some

6. A. many B. make C. fate D. pain

7. A. heat B. sweat C. threat D. thread

8. A. climb B. dictionary C. economic D. six

9. A. beg B. age C. gather D. guess

10. A. children B. choose C. child D. mechanic

II. From each number, pick out one word which has the stress on the first syllable.

1. A. garbage B. junkyard C. protect D. treasure

2. A. collected B. published C. protected D. provided

3. A. recycle B. refreshment C. creatures D. reuse

4. A. limitation B. intermediate C. desforestation D. disappointed

5. A. garbage B. problem C. solution D. sewage

III. Choose the word or the phrase or sentence that best completes each unfinished sentence below or that best keeps the meaning of the original sentence if it is substituted for the underlined word or phrase.

1. _________ air is one of the many problems we have to solve.

A. Pure B. Polluted C. Dust D. Pleasant

2. I’ll be in trouble if I _________my passport.

A. lose B. will lose C. lost D. would lose

3. We can eat at home or, ________ you prefer, we can go to a restaurant.

A. when B. whether C. if D. which

4. If it is raining this evening, I_________.

A. will go out B. don’t go out C. go out D. won’t go out

5. Minh’s English is excellent. He speaks________.

A. perfectly English B. English perfectly

C. perfect English D.English perfect

6. I’m disappointed _________ people have spoiled this area.

A that B. when C. if D. how

7. He ________ to find a job but he had no luck.

A. hardly tried B. hard tried C. tried hardly D. tried hard

8. We couldn’t go on a picnic as planned __________ it was raining.

A. however B. but C. because D. so

9. If he ________ hard today, can he have a holiday tomorrow?

A. works B. will work C. worked D. would work

10. ________we were tired, we sat down beside the stream.

A. Because of B. If C. As D. And

11. He _________to find a job, but he had no luck.

A. tried hard B. hardly tried C. tried hardly D. try hardly

12. Solar energy doesn’t cause __________.

A. pollution B. polluted C. pollute D. pollutant

13. Are you looking forward ___________ my letter ?

A. to see B. to seeing C. saw D. seeing

14. “ ___________” means a piece of land full of rubbish.

A. junkyard B. treasure C. hedge D. stream

15. Dynamite _________ many years ago.

A. has invented B. invented C. was invented D. were invented

16. Mary said to me “ Can you speak English ?”

In reported speech the sentence will be

à She asked me _________

A. if I can speak English B. if I could speak English.

C. If can I speak English D. If I could speak English ?

17.I live very far from school. I wish________

A. I lived far from school. B. I lived close to school.

C. I live near the school now. D. I don’t live very far from school

18. If he __________ hard today, can he have a holiday tomorrow?

A. works B. will work C. worked D. would worked

19. Because there _________ no buses, we had to take a taxi.

A. are B. is C. was D. were

20. We plan to ________ this Saturday.

A. go hiked B. go hiking C. go to hike D. go hike

21. I’ll have to buy a map _________ I don’t know this area.

A. if B. because C. when D. because of

22. It is recommended that he __________ this course.

A. took B. take C. take D. taking

23. He’s running so fast. I __________ catch up with him.

A. cannot hardly B. can hardly

C. not hardly D. could hardly

24. It is important that he _________ take the final examination.

A. has to B. have to C. had to D. having to

25. I will be __________if she manages to sell that motorbike at a high price.

A. surprised B. surprise C. surprising. D. to surprise

26. Unless you understand. I __________.explain it again to you

A. am B. was C. will. D. would

27. If you know where she lives, please let me__________

A. know B. knew C. known D. to know'

28. If he ______ a student, he will get a discount.

A. were B. was C. were D. will be

29. ______ you are interested in this film, don't go to see it at any cost.

A. Unless B. If C. Because D. So

30. If you like that book. l will give it______you as my present.

A. to B. from C. at D. for

31. If you are busy, we ________ this by ourselves.

A. will do B. did C. would do D. doing

32.How about ______ dinner with us on Sunday ?

A.to have B.have C. have had D. having

33.My brother is very fond of ______ to pop and rock music .

A.listen B.to listen C. listening D. listens

34.Life today is very different ______ life 50 years ago .

A.to B.from C. with D. at

35.My uncle is a ______ .He often does research in his laboratory .

A.science B.scientist C. scientific D. scientists

36.My father arrives in Singapore ______Monday evening .

A.in B.at C. from D. on

37.John goes to his office every day except Sunday . ___ Sundays he stays at home .

A.On B.At C. In D. From

38.I hope the weather will be nice ______ the weekend .

A.in B.to C. at D. between

39.Would you like ______ to a party on Saturday ?

A.come B.coming C. to come D. will come

40.Helen is always in the kitchen . She enjoys ______.

A.cook B.to cook C. cooks D. cooking

41.People wanted to see the opening of the ceremony, _____they started leaving very early in the morning

A. because B. so C. but D. and

42.Vietnamese women prefer to wear modern clothing ______ work .

A. at B. in C. to D. with

43.He ______ with friends in an apartment in HCMC since last week .

A. living B. has lived C. lived D. live

44.My mother said she ______ busy then

A. was B. is C. is being D. being

45.My village lies near the ______ of the mountain and by the river .

A. leg B.foot C.feet D. legs

46.If you don’t study hard , you ______ the exam .

A. failed B.will fail C.fail D. have failed

47.It is Saturday , ______?

A. is it B. it isn’t C. isn’t it D.wasn’t it

48.She said that she ______ learning English with you .

A.like B.liked C.liking D.to like

49.They ______ their home village last Sunday .

A.visit B.visited C.was visiting D. were visiting

50.He was born ______ March 25 , 1992 .

A.at B.on C.in D.for