SỞ GIÁO DỤC VÀ ĐÀO TẠO | KỲTHI CHỌN HỌC SINH GIỎI LỚP 12 THPT |
MÔN THI: HÓA HỌC
Thời gian làm bài: 180 phút (không kể thời gian giao đề)
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Question 1:
a. Choose the word whose underlined part is pronounced differently from the rest in the same line. (5p)
1. A. creative B. creation C. creature D. create
2. A. insect B. percent C. wetland D. extinct
3. A. helps B. arrives C. likes D. laughs
4. A. frightened B. stamped C. walked D. watched
5. A. serious B. thousand C. found D. around
b. Pick out the word that has the stress syllable differently fromthat of the other words.(5p)
1. A. biologist B. endangerment C. priority D. vulnerable
2. A. survive B. product C. reserve D. enact
3. A. bamboo B. panda C. parrot D. wildlife
4. A. universal B. horizontal C.potential D. preferential
5. A. subsequent B. undergo C. enterprise D. government
Question 2: Choose the correct word or phraseto complete each sentence (20p)
1. But for the rain we ........................... our destination ages ago.
A. reached B. would reach C. would have reached D. had reached
2. I was offered lamb or chicken, .................. I like.
A. neither of that B. neither of which C. of that neither D. of which neither
3. David: You really have a nice dress, Kathy. I’ve never seen such a perfect thing on you.
Kathy: ................................. . I bought it at the shop near my house yesterday.
A. I’m sure you like it B. I suppose it is not bad
C. I’m glad you like it D. I myself like it very much
4. My son didn’t feel well.................., he didn’tgo to work yesterday.
A. However B. Therefore C. So D. But
5. Don’t let me disturb you; pleaseget .................. yourwriting.
A. on with B. in with C. with D. in
6. I don’t like this chocolate. I like .................. chocolate.
A. some others B. another C. some other D. one other
7. Her blouse didn’t fit her well. ................................
A. So her skirt didn’t B. So didn’t her skirt
C. But her skirt didn’t D. But her skirt did
8. Physics and mathematics interest him almost ……….
A. alike B. the same C. similarly D. equally
9. I admit I suffer from a …………..of patience with such people.
A. shortage B. lack C. emptiness D. limit
10. Don’t start the next page .................. you have finished the last test question.
A. until B. while C. when D. since
11. They turned …………at the party, despite the awful weather.
A. round B. in C. back D. up
12. - “Do you like frog’s legs?”
- “……………them, I don’t really know.”
A. Never try B. Not to have try
C. Never having tried D. Never had tried
13. The ..........between the rich and the poor countries of the world is increasing.
A. space B. gap C. distance D. interval
14. Although he was completely _______ as a furniture-maker, he produced the most beautiful chairs.
A. unable B. uneducated C. incapable D. untrained
15. My grandmother takes better photographs than ......................
A. my B. I take C. me D. me take
16. There were many big trees, between me and the river and now they all fell down .............. into the water.
A. one another B. one after another C. each other D. a lot
17. Just keep ....... on the baby while I co
A. a lo
18. There ..........lots of furniture ...........in the furniture department.
A. are / to display B. are / displaying
C. is / displaying D. is / on display
19. I want to keep .................................
A. the room tidy B. the room tidily C. the tidy room D. the tidily room
20. Although most car can travelmuch faster, the ...............speed limit in the UK is 70 mph (110 kph).
A. maximum B. greatest C.highest D. biggest
Question 3: Use the correct forms of the verbs in brackets (10p)
1. By May 5th, we (live) in this city for ten years.
2. The boy with his two companions (split) the cherry tree now.
3. I didn’t get home until after midnight lastnight. Otherwise, I (return) your call.
4. There are a lot of students (sit) in the playground.
5. I’m really sleepy today. I wish I (nottake) Bob to the airport late last night.
6. I demand that I (retake) the exam.
7. Tom was the last person (leave) the classroom yesterday.
8. His greatest ambition is (choose)to take part in the Olympics.
9. It lo
Question 4: Fill each blank with the correct form of the words given. (10p)
1. She left school with good ...................... (Qualify)
2. The bride was …………dressed in white. (STYLE)
3. The……..of the agriculture in our country is very necessary. (ELECTRIFY)
4. Jim’s ...............of the crime only made matters worse. (Deny)
5. You can raise your hand to show that you need ......... (ASSIST)
6. We had the phone…......because we are moving tomorrow. (connect)
7. …………., there are blackholes in space . (theory)
8. One of the aims of the organization is to provide ......................................aid to the refugees. (HUMAN)
9. Dozens of ........ are injured on the city road each year. (CYCLE)
10. It was ........of him to leave the children on their own in the pool. (RESPONSE)
Question 5: Read the following passage and then choose the most suitable word for each space. (10 p)
CONVERSATIONAL TURNS
Probably the most…..(1)…….recognized conversational convention is that people take……(2)….. speaking. But how do they know when it is their turn? Some…..(3)…..must be present, otherwise conversations would be continually breaking down into a disorganized jumble of interruptions and simultaneous talk.
Turn-taking cues are usually quite subtle. People do not simply ….(4)….. talking when they are ready to yield the floor. They usually signal in advance that they are about to conclude. The clues may be semantic “ So anyway,…” or “Last but not least,…”; but more commonly the speech itself can be modifiedto show that a turn is about to …..(5)….. typically, by lowering its pitch, loudness, or speed.
Body movements and patterns of eye……(6)……are especially important. While speaking, we lo
1. A. widely B. completely C. easily D. largely
2. A. sides B. care C. interest D. turns
3. A. regulations B. rules C. norms D. laws
4. A. stop B. end C. start D. give up
5. A. end B. stop C. complete D. final
6. A. movement B. contact C. lo
7. A. parts B. shares C. turns D. proportions
8. A. signing B. signaling C. hinting D. saying
9. A. break B. cut C.interrupt D. interfere
10. A. clear B. paraphrase C. repeat D. clarify
Question 6: Supply the most suitable wordfor each blank (10 points)
Deserts cover about one fifth of the Earth’s land area. A desert is a region with (...1...) plant and animal life because it is a verydry and harsh environment. There are extreme temperatures and very little rainfall, so (...2...) desert plants like cacti are not abundant, (...3...) is animal life.
Many deserts are very hot during the day and very cold duringthe night, when temperatures can fall well (...4...) freeing point. Some deserts, on the other hand, are always cold. The Gobi Desert in Asia and the desert on the continent of Antarctica (...5...) good examples ofdeserts of this type.
Different animals live in different types of deserts, and all animals that live in the desert have to adapt to their environment in order to (...6...). For example, to 4 avoid extreme daytime (...7...), many desert animals are nocturnal. They burrow beneath the surface or hide in the shade during the day and emerge at night to (...8...) food. Some desert animals get all the (...9...) they need from their food, so they do not have to drink at all. It’s also probably because of the shortage of food that most (...10...) animals are small.
Question 7: Read the article about endangered species. For questions 1-5, choose the correct answer: A, B, C or D. (5p)
ENDANGERED SPECIES
In today’s world, thousands of plants and animals are in danger of extinction, and the number of species at risk increases every year. Not all plants or animals existing in small numbers are endangered as their population may not be decreasing or threatened. An endangered species is onewhich is expected to die out within twenty years unless special measures are taken to protect it.
Endangered animals include blue whales, giant pandas, orangutans, rhinoceroses, snow leopards, tigers and some species of crocodile. Endangered plants include some species of cactus. Why are the above species of animal endangered? There are now legal limits on hunting, but notall species are protected by law. Even when animals are legally protected. Illegal hunting for fur, tusks and horns continues. Those animals that are not killed are captured and sent to zoos or sold as pets. For example, the little blue macaw, a parrot native to Brazil, has been captured in such numbers for private bird collections that it is almost extinct in the wild. In addition to this, many species’ habitats are eliminated when people clear land in order to build on it, or when they introduce domestic and non-native animals which overgraze the vegetation and even prey on birds and mammals which are already at risk of extinction.
Why is it important to save endangered species? Firstly, nature is delicately balanced, and the extinction of one species may have a serious effect on others. Secondly, it is the fault of mankind that somany species are endangered, so it is our responsibility to protect those species while we still can. We must stop the hunting of wild animals and the destruction of the forests before it is too late. It is worth making an effort- by saving endangered species we could be saving ourselves.
1. According to the text, ......
A. all plants and animals are expected to die out in 20 years if we don’t take measures to protect them.
B. blue whales have become extinct.
C. more and more species become endangered each year.
D. only animal species are seriously threatened.
2. The author wonders why all the species mentioned are in danger because ......
A. all species are protected by law
B. hunting is not allowed everywhere nowadays.
C. most endangered species are kept in zoos.
D. illegal hunting has been eliminated.
3. The author uses the blue macaw as an example of ......
A. birds captured for the pet trade.
B. a species that has completely died out.
C. a species of birds killed by hunters.
D. birds captured for zoos.
4. According to the author introducing domestic, non-native animals ......
A. is not associated with endangered species.
B. is only dangerous in tropical forests.
C. is the only reason why somespecies habitats are destroyed.
D. may threaten the habitats of some species.
5. Endangered animals .....
A. will definitely die out soon.
B. are an important part of the world’s wildlife.
C. cannot be saved because we need to save ourselves.
D. have a bad effect on others.
Question 8:
a. There is one mistake in each of the following sentences. Find and correct it. (5p)
1. The King was too happy that he decided to build a pagoda of lotus shape over water.
2. He knows to repair the carburetor without taking the whole car apart.
3. Most of the food what elephant eat is brought to their mouths by their trunks.
4. If I knew you were coming, I would have met you at the airport.
5. I’m afraid all your copies have been sold butmore have ordered.
b. Complete each of the following sentences in such a way thatit means exactly the same as the sentence printed before it. (10p)
1. Lan did not reach home until midnight.
It .............................................................................
2. The cost of living has gone up considerably in the last few years.
There………………………………………………….
3. Experts say that the fall in the birth rate between 1964 and 1977 caused the drop in the number of school leavers.
The drop………………………………………………
4. The boy became so confused and worried that he left home.
So .................................................................
5. You think that fat people are always jolly, but you are wrong.
Contrary ................................................................
6. I’m on the tenth page ofthe report I am writing.
So far I ........................................................
7. She asked John how heliked her new dress.
"How ...........................................................?"
8. On receipt of your cheque, we shall send the goods to you.
As soon .......................................................................
9. These new machines haveput an end to queuing.
Before these ..............................................
10. Have you ever used gestures to communicate before?
Is it ......................................................................?
c. Write a paragraph about 100 words to describe the ideal world in which you would like to live inthe future. (10p)
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