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½Ì²ÄÖÐQuiz 1 Section A
Directions£ºIn this part there are 15 incomplete sentences. For each sentence there are four choices marked A, B, C and D. Choose the ONE answer that best completes the sentence.
26. In order to strengthen his muscles, Mike goes to the gym _____ to do exercises.
A. increasingly B. often C. regularly D. lively 27. He asked who I voted for and I said it was my own _______.
A. thing B. matter C. duty D. business
28. Mr. Smith was determined to _______ the experiment after so many years' interruption.
A. carry on B. carry out C. carry away D. carry forth 29. Drunken driving is often the major _____ of traffic accidents.
A. reason B. cause C. excuse D. way 30. The case ______ a lot of things, ______ a second-hand watch.
A. included; contained B. included; containing C. contained; included D. contained; including
31. His article concerning population control was published in the _____ issue of China Daily. A. latest B. lately C. late D. later
32. Although many young people are eager to go abroad, he prefers _________ in
his own country. A. stay and work B. stayed and worked C. to stay and work D. to be stayed and worked
33. The good service at the hotel made up for the poor food to some ________.
A. way B. grade C. sort D. extent
34. Scientists think that the continents __________ always where they ____today.
A. aren¡¯t; are B. aren¡¯t; were C. weren¡¯t; are D. weren¡¯t; were 35. As soon as he comes back, I¡¯ll tell him when __________ and see him. A. will you come B. you will comeC. you come D. do you come
36. Years ago we didn't know this, but recent science ______ that people who
don't sleep well soon get ill. A. showed B. has shown C. will show D. is showing
37. They _____ on the program for almost one week before I joined them, and
now we _____ on it as no good results have come out so far. A. had been working; are still working B. had worked; were still working C. have been working; have worked D. have worked; are still working
38. ¡ªWhat would you do if it ____ tomorrow?
¡ªWe have to carry it on, since we¡¯ve got everything ready. A. rain B. is raining C. will rain D. rains
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39. The coffee is wonderful! It doesn¡¯t taste like anything I _____ before.
A. was having B. have C. have ever had D. had ever had 40. By the time Jane gets home, her aunt _______for London to attend a meeting.
A. will leave B. leaves C. will have left D. left
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1. Grandpa used to tell us something about the \time to spare.
A. that B. as C. so that D. whenever
2. Li Fang is very busy, ____ she's always helping others with their lessons. A. but B. although C. so D. for
3. Getting a right job can be difficult ____ the students ____ prepared to deal with the job interview.
A. if; won't B. unless; will C. unless; are D. if; are
4. Everything depends on ____ they will support you about it. A. if B. which C. whether D. that
5. She won the first prize in the speech contest and ____ surprised us. A. which B. it C. as D. who
6. The Oscar is one of the film prizes ____ offered to any Chinese actor or actress so far.
A. which is not B. that have not been C. that has not D. that has not been
7. He made another wonderful discovery, ____ of great importance to science. A. which I think is B. which I think it is C. which I think it D. I think is
8. It's really very dangerous. One more step, ____ the baby will fall into the well. A. or B. so C. but D. and
9. She is American, ____ she knows little about American history. A. so B. yet C. and D. therefore
10. Information technology is taught in most schools, ____ we have entered the information society.
A. so B. while C. still D. for
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1. I can guess you were in a hurry. You ____ your sweater inside out. A. had worn B. wore C. were wearing D. are wearing 2. -- We ____ that you would fix the TV set this week.
-- I'm sorry. I ____ to fix it this week, but I've been too busy. A. had expected; had intended B. are expecting; had intended C. expect; intend D. expected; intend 3. He will stop showing off, if no notice ____ of him. A. is taken B. will be taken C. takes D. has taken
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4. -- It is said that another new car factory ____ now. -- Yeah. It ____ one and a half years.
A. is building; takes B. is being built; will take C. is built; will take D. is being built; takes
5. -- I'm sorry, but I shouldn't have been so rude to you. -- You ____ your temper but that's OK. A. have lost B. had lost
C. did lose D. were losing 6. -- Why? Tom, your shirt is so dirty!
-- Mum, I ____ my storeroom downstairs. A. cleaned B. have worked
C. was cleaning D. have been cleaning
7. They won't buy new clothes because they ____ money to buy a color TV set. A. save B. are saving C. has saved D. were saving
8. Good heavens! There you are! We ____ anxious about you, and we ____ you back throughout the night.
A. are; expect B. were; had expected C. have been; were expecting D. are; were expecting 9. I've finally finished my paper and it ____ me an entire month. A. takes B. took C. was taken D. had taken
10. The traffic in our city is already good and it ____ even better. A. gets B. got C. has got D. is getting
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Unit 1
You are unique. There are 6.5 billion people in the world but no other person is exactly like you. Besides people, there are millions of other living things. Every living thing is different from each other. Every living thing is a unique combination of characteristics.
Why is each living thing unique? Where do its characteristics come from? Do people receive characteristics from their mothers and fathers? How? The work of Gregor Mendel was especially important to help us to answer these questions.
Mendel studied plants, especially pea plants. In some way they were all the same. For example, they all had flowers. But some had red flowers, and others had white flowers. Some were tall, others were short. Mendel was especially interested in the differences. He wondered why each plant was of certain color, shape, size. He experimented with thousands of pea plants, with a careful record. And he discovered some interesting things. He mated different pea plants. First, he mated a red flower plant with a white flower plant. All of the offspring plants had red flowers. Mendel was curious about what happened to the white. Then he mated two of the offspring plants. Every time he did this, they produced three red plants and one white plant. There was the white again. So Mendel knew that even red plants somehow passed on whiteness. Mendel decided that pea plants carried factors, and the parents passed these factors onto their offspring.
Today we call these factors genes. Genes are tiny pieces of matter. They carry information from parents to offspring. Now we know that every person is unique and one reason for this is that
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