题目内容

6. All the radioactive materials                which can be deadly at high levels (give)

所有这些放射性材料都放出有害的能致人死的射线。

6. give off the harmful radiation

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Why does cream go bad faster than butter? Some researchers think they have the answer,and it 1        down to the 2        of the food,not its chemical composition―a finding that could help 3        some processed foods of chemical preservatives (防腐剂) .

Cream and butter 4        pretty much the same substances,so why cream should sour much faster has been a mystery. Both are emulsions (孚L状液) 一tiny globules (小球体) of one liquid evenly distributed throughout another. The difference 5        in what's in the globules and what's in the surrounding liquid,says Brocklehurst,who led the 6      .

In cream,fatty globules drift 7        in a sea of water. In butter,globules of a watery solu?tion are locked away in a sea of 8.        The bacteria which make the food go bad 9        to live in the watery regions of the mixture. "This means that in cream,the bacteria are 10        to grow throughout the mixture," he says.

When the situation is 11       ,the bacteria are locked away in compartments (间隔室) bur?ied deep in the sea of fat. 12       in this way,individual colonies cannot spread and 13        run out of nutrients (养料) .They also slowly 14        themselves with their waste products. "In but?ter,you get a selflimiting system which stops the bacteria 15       ," says Brocklehurst.

The researchers are already working with food companies 16        to see if their products can be made resistant 17        bacterial attack through alterations to the food's structure. Brockle?hurst believes it will be possible to 18        the emulsions used in salad cream,for instance,more like 19        in butter. The key will be to do this while keeping the salad cream 20        and not turning it into a solid lump.

(   ) 1. A. puts   B. turns   C. takes   D. comes

(   ) 2. A. variety   B. content   C. quality   D. structure

(   ) 3. A. help   B. relieve   C. rid   D. discharge

(   ) 4. A. contain   B. include   C. cover   D. enclose

(   ) 5. A. remains   B. stays   C. shows   D. lies

(   ) 6. A. investigation   B. survey   C. exploration   D. inspection

(   ) 7. A. away   B. about   C. over   D. off

(   ) 8. A. globules   B. cream   C. fat   D. water

(   ) 9. A. wish   B. choose   C. prefer   D. decide

(   ) 10. A. free   B. likely   C. busy   D. exhausted

(   ) 11. A. opposite   B. reversed   C. returned   D. advanced

(   ) 12. A. Caught   B. Trapped   C. Seized   D. Captured

(   ) 13. A. tightly   B. slowly   C. firmly   D. rapidly

(   ) 14. A. murder   B. poison   C. pollute   D. release

(   ) 15. A. decreasing   B. changing   C. growing   D. raising

(   ) 16. A. anxious   B. keen   C. clever   D. unwilling

(   ) 17. A. in   B. of   C. on   D. to

(   ) 18. A. make   B. take   C. design   D. create

(   ) 19. A. those   B. ones   C. that   D. it

(   ) 20. A. liquid   B. vapour   C. substance   D. fresh

The "show business" attracts many young people. 1       only very few can hope to be?

come famous.

Talent is not 2        Without a good manager,a performer can never hope to succeed. Fashion is 3        important in this business. The best tailor in the world will never be successful if he makes 4        clothes. In exactly the same way,a performer must change his "act" in order to 5        the taste of the moment. This is 6        for actors and dancers,but perhaps most of all for 7       "Pop" stands for "popular"，and a pop singer has to 8        to become popular. He must either give the public what they want,or he must find 9        way of singing that will at?tract their attention. 10       when he has succeeded,and his records are sold everywhere,he can not 11       . He must work harder than ever to remain popular,12       there are always younger trying to become famous. The life of a successful pop singer is 13       . He can only relax when he is alone,because everything he does is watched and reported in the special news?paper written for the "fans". The fans are the most important people in the world for 14       . They buy his record,they go to his concerts,and they make him 15       . But they can be very troublesome,too. They sometimes 16        handkerchiefs,they tear off buttons,and they even cut off pieces of the unfortunate singer's hair. Many singers have been forced to 17        A pop singer has to spend a lot of money on 18       .

because he must always look smart. He must have a nice car. And 19      ,he must al?ways keep smiling for the benefit of 20       .

(   ) 1. A. Unfortunately   B. Therefore   C. Naturally   D. Luckily

(   ) 2. A. important   B. enough   C. necessary   D. encouraged

(   ) 3. A. still   B. yet   C. even   D. also '

(   ) 4. A. beautiful   B. oldfashioned   C. new   D. strange

(   ) 5. A. follow   B. get   C. change   D. agree

(   ) 6. A. easy   B. same   C. true   D. good

(   ) 7. A. artists   B. tailors   C. women   D. singers

(   ) 8. A. act   B. work hard   C. travel   D. sing

(   ) 9. A. a new   B. an easy   C. a popular   D. a strange

(   ) 10. A. Even   B. Unless   C. If   D. But

(   ) 11. A. give up   B. leave   C. relax   D. satisfy

(   ) 12. A. so   B. then   C. because   D. and

(   ) 13. A. simple   B. very interesting

   C. exciting   D. not at all easy

(   ) 14. A. the public   B. the show business

   C. the first star   D. the singer

(   ) 15. A. satisfy   B. exalted   C. rich and famous   D. happy

(   ) 16. A. receive   B. steal   C. send   D. accept

(   ) 17. A. sing   B. give   C. hide   D. leave

(   ) 18. A. traveling   B. clothes   C. food   D. homing

(   ) 19. A. thus   B. more or less   C. after all   D. above all

(   ) 20. A. his public   B. himself   C. all   D. his manager

1. After a fourhour hard and long climb,                    and we were soon to get to it. (within)

在四个小时艰苦而漫长的攀登之后，山顶已经在望，我们很快就要到了。

Throughout my life,I have been lucky enough to have a very good relationship with my parents. They have supported me,1       me necessary criticism,and taught me a great deal about 2        to live my life. Parents can be very important teachers in our lives;3      ,they are not 4        the best teachers.

Parents may be too 5        to their children emotionally. Sometimes they can only see their children through the 6        of a protector. For example,they may limit a child's freedom in the name of safety. A teacher might 7       a trip to a big city as a valuable new experience. However,it might seem 8        dangerous to a parent.

Another problem is that parents may expect their children's interests to be 9        to their own. They can't seem to 10        from their children in their mind. If they love science,they may try to 11        their child to love science too. But 12       if their child's true love is art,or writing,or car repair?

Parents are usually eager to 13        their value to their children. But should children always believe what their parents do? Maybe different generations need different ways of thinking. When children are young,they 14       that their parents are always right. But when they get older,they realize there are other 15       ,Sometimes parents,especially older ones,can't 16       rapid social or technology changes. A student who has friends of all different races and backgrounds at school may find that her parents don't really 17        or value the digital revolu?tion. Sometimes kids have to find their own ways to 18        they believe in.

The most important thing to realize is that we all have many 19        in our lives. Our par?ents teach us,our teachers teach us,and our peers teach us. Books and newspapers and televi?sion also teach us. All of them are 20       .

(   ) 1. A. given   B. shown   C. taken   D. offer

(   ) 2. A. what   B. when   C. how   D. which

(   ) 3. A. otherwise   B. however   C. nevertheless   D. whatever

(   ) 4. A. often   B. usually   C. sometimes   D. always

(   ) 5. A. near   B. beside   C. close   D. by

(   ) 6. A. eyes   B. ways   C. means   D. methods

(   ) 7. A. guess   B. consider   C. regard   D. see

(   ) 8. A. rather   B. too   C. quite   D. very

(   ) 9. A. similar   B. same   C. only   D. familiar

(   ) 10. A. divide   B. separate   C. untie   D. keep

(   ) 11. A. oblige   B. make   C. force   D. have

(   ) 12. A. as   B. even   C. only   D. what

(   ) 13. A. pass by   B. pass away   C. pass on   D. pass along

(   ) 14. A. believe   B. expect   C. hope   D. predict

(   ) 15. A. things   B. views   C. matters   D. opinion

(   ) 16. A. keep in touch with   B. keep away from

   C. keep up with   D. keep in mind

(   ) 17. A. learn   B. realize   C. know   D. understand

(   ) 18. A. how   B. what   C. that   D. it

(   ) 19. A. friends   B. classmates   C. teachers   D. relatives

(   ) 20. A. valuable   B. worthy   C. value   D. worth

1.                  ，you'll be able to overcome all the difficulties you meet with sooner or later (keep)

只要你不断努力，你迟早会克服你所遇到的所有的困难。

1. We                  with unhealthy content. (prohibit)

应禁止发表任何不健康内容的文章。

4. The number of private cars in urban areas        while the number of public buses should be increased(limit)

在城市，私人轿车的数量应得到控制而公交车的数量应该增加。

8. Now,                 that no college or university can educate its students by the time they graduate (accept)

现在，人们普遍认为没有一所大学能够在毕业时候教给学生所有的知识。

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