A.READING
Read the passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions.
1. Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see.
‘ They drift about lazily with the currents, providing a basic food for many larger animals.
2.Plankton has been described as the equivalent of the grasses that grow on land. However, plankton is richer in food value than the land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates each year, the sea’s plankton generates more than twice as much.
3.Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now, marine scientists have begun to study this possibility to look for different means of feeding an expanding world population.
4.One type of plankton that seems to have great harvest possibilities is a tiny shrimp-like creature called krill. Growing to two or three inches long, krill provide the major food for the giant blue whale, the largest animal ever to inhabit the Earth. Krill swim about just below the surface in huge schools mainly in the cold Antarctic. Because of their pink colour, they often appear as a solid reddish mass when viewed from a ship or the air. Krill are very high in food value. A pound of krill contains about 460 calories. If the krill can feed such huge creatures as whales, many scientists reason, they must be certainly a new food source for humans.
1.Which of the following statements best describes the organisation of the passage?
A.The author presents the advantages and disadvantages of plankton as a food source.
B.The author quotes public opinion to support the argument for farming plankton.
C.The author classifies the different food sources according to the amount of carbohydrate.
D.The author makes a general statement about plankton as a food source and then moves to a specific example.
2.According to the passage, why is plankton considered to be more valuable than land grasses?
A.It is easier to cultivate.
B.It produces more carbohydrates.
C.It does not require soil.
D.It is more delicious.
3.What is mentioned as one distinguishing feature of krill?
A.They are the smallest marine animals.
B.They are pink in color.
C.They are similar in size to lobsters.
D.They have grass-like bodies.
4.The author mentions all of the following as reasons why plankton could be considered a human food source EXCEPT that it is__________ .
A.high in food valtie
B.in abundant supply in the oceans
C.an appropriate food for other animals
D.free of chemicals and pollutants
5.Where in the passage does the author first compare plankton to land grasses?
A.Paragraph 1
B.Paragraph 2
C.Paragraph 3
D.Paragraph 4
B.LANGUAGE FOCUS
Exercise 1. Below are the transcriptions of some words. Write the orthographic forms of the words.
Example: /ai1dia/ -» idea
|
Exercise 2. Complete the following table by writing the correct verb or noun in each blank. The first one has been done as an example.
| Verb | Noun |
| divide | (0) division |
| (1) | challenge |
| reveal | (2) |
| (3) . | dependence |
| interact | (4) |
| (5) | supply |
| contribute | (6) |
| (7) | entrapment |
| dispose | (8) |
| (9) | connection |
| disappoint | (10) |
Exercise 3. Match these situations with the advice you might give in each one.
| 1. | It’s raining. | a. “You should take a rest.” |
| 2. | It’s too far to walk. | b. “You should ask a policeman.” |
| 3. | Someone doesn’t know which way to go. | c. “You should take an umbrella.” |
| 4. | Someone is going to live overseas. | d. “You should wear an overcoat.” |
| 5. Someone has to get up early in the morning. | e. You should see a doctor.” | |
| 6. Someone hasn’t got any money with them. | f. “You should learn the language before | |
| 7. It’s going to be a cold day. | you go.” | |
| 8. | Someone is tired out. | g. “You should pay by cheque.” |
| 9. | Someone has seen someone breaking into a | h. “You should take a taxi.” |
| shop window. ». | i. “You should set your alarm clock.” | |
| 10. Someone is feeling hot and has a headache. | j. You should call the police.” | |
Exercise 4. Give advice in the following situations by using should.
Example: – I have a test tomorrow.
– You should study tonight.
1. I’m writing a composition, and there is a word I don’t know how to spell.
2. I don’t feel good. I think I’m catching a cold.
3. I can’t see the blackboard when I sit in the back row.
4. I’m cold.
5. I need to improve my English.
6. There’s no food in my house, and some guests are coming to dinner tonight.
7. I have only ten thousand dong in my pocket, but I need some money to go out tonight.
8. I have a toothache.
9. My friend is arriving at the airport this evening. I’m supposed to pick him up, but I’ve forgotten what time his plane gets in.
10. I have the hiccups.
Exercise 5. Choose the best option (A, B or C) to fill each blank.
1.If I had a typewriter, I_____ it myself.
A.type B. will type C. would type
2.If I______his address, I’d give it to you.
A.know B. knew C. had known
3.If he worked more slowly, he______ so many mistakes.
A. wouldn’t make B. didn’t make C. won’t make
4.I shouldn’t drink that wine if I ______you
A.am B. been C. were
5.More tourists would come to this country if it_______ a better climate.
A.had B. has C. would have
6.If someone______ you a helicopter, what would you do with it?
A.gives B. had given C. gave
7.If I__________a big prize in a lottery, I’d give up my job.
A.will win B. win C. won
8.What___________if you found a burglar in your house?
A.will you do B. would you do C. did you do
9.I could tell you what this means if I________Greek
A.know B. knew C. had known
10.He might get fat if he_____smoking
A.stopped B. stops C. had stopped
11.If he knew that it was dangerous, he______ .
A.wouldn’t come B.didn’t come C. won’t come
12.If you_____ someone drowning, what would you do?
A.see B.had seen C. saw
13.If you slept under a mosquito net, you__________bitten so often.
A.weren’t B.won’t be C. wouldn’t be
14.I could get a job easily if I___________a degree.
A.have B.had C. will have
15.If we had more rain, our crops______ faster.
A.will grow B.would grow C. grow
ĐÁP ÁN
A.READING
1.D 2.B 3.B 4.D 5.B
B.LANGUAGE FOCUS
Exercise 1.
1.clear 3.usually 5.poor 7.actually
2.up stairs 4.atsmosphere 6.square 8.cheers
Exercise 2.
1.challenge 3.depend 5.supply 7.entrap 9.connect
2.revelation 4.interaction 6.contribution 8.disposal 10.disappointment
Exercise 3.
1.c 2.h 3.b 4.f 5.f 6.g 7.d 8.a 9.j 10.e
Exercise 4.
1.You should look it up in a dictionary.
2.You should take some medicines.
3.You should move to the front row.
4.You should drink some hot coffee.
5.You should go to an evening English class.
6.You should invite them to eat in a restaurant near your house.
7.You should ask your father for some more money.
8.You should go to the dentist’s.
9.You should call the airport to ask about the time his plane gets in.
10You should drink some water in small gulps
Exercise 5.
1.C 3.A 5.A 7.C 9.B 11.A 13.C 15.B
2.B 4.C 6.C 8.B 10.A 12.C 14.B
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