无锡市2015高考英语单项选择和阅读理解暑假作业（7）及答案
单项选择
Directions: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence.
25.    Cars do cause people some health problems, in fact far more serious _____ than computers do.
A. one            B. ones                C. it                D. those   
26.    It is known to all that the US is about the same size as China, but its population is five times _____.
A. as few        B. fewer              C. as little        D. smaller
27.    Some doctors want to examine the impact those marine mammals have _____ the children who had tried dolphin-assisted therapy.
A. on              B. with              C. to              D. about
28.    Actually you _____ the dictionary here. You are not allowed to use it. 
A. needn’t bring                      B. needn’t have brought 
C. didn’t need to bring                    D. don’t have to bring
29.    Health management membership fees range from 2,000 yuan ($ 320) to 20,000 yuan a year _____ on the level of service.
    A. depend        B. depended            C. depending          D. to depend
30.    China _____ at a tremendous rate, an outstanding achievement never seen before, during the past two decades. 
    A. developed                            B. has developed       
C. is developing                        D. had been developing   
31.    Of course, the fact _____ misguided forms of dieting result in so many problems does not mean that no dieting is safe.
    A. that            B. what                C. which            D. why
32.    Only _____ possible to settle the problem.
A. does the chief editor come will it be    B. when the chief editor comes will it be
C. has the chief editor come it will be      D. when the chief editor comes it will be
33.    Director Ang Lee told the New York Film Festival audience following the screening _____ Life of Pi was extremely hard to make. 
A. what            B. that                C. which            D. whether
34.    More than 20 cars of the new type _____ in the first three days after its launch last Saturday.
    A. sold            B. has sold            C. were sold        D. has been selling   
35.    Being from a family _____ produced great actors, it’s no wonder that she quickly found her way into the spotlight.   
    A. who            B. where                  C. what            D. which
36.    “My dear friends, let us build our class, a team ever looking forward _____ the full potential of all its members,” said our monitor. 
      A. realize            B. realizing            C. to realize        D. to realizing 
37.    Tears of joy and happiness came to my eyes _____ we won the first prize in the sports meeting.
    A. while            B. as                C. unless            D. before
38.    I was advised to arrange for insurance _____ I needed some medical treatment.
editor怎么读英语发音    A. so that            B. in case                C. even if            D. as though
39.    _____ participation in public decision-making, telephone conference calls are widely used.   
A. Extend        B. Extending          C. To extend        D. Having extended
40.    The boy has spent a whole day _____ in his room. No one knows what he is doing.
      A. locked            B. to lock                C. locking        D. been locked
【参考答案】25—29    BDABC    30—34    BABBC    35—40    DDBBCA
阅读理解。阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
      Which is safer --- staying at home, traveling to work on public transport, or working at the office? Surprisingly, each of these carries the same risk, which is very low. However, what about flying compared to working in the chemical industry? Unfortunately, the former is 65 times riskier than the latter! In fact the accident rate of workers in the chemical industry is less than that of almost any of human activity, and almost as safe as staying at home.
The trouble with the chemical industry is that when things go wrong they often cause death to those living nearby. It is this that chemical accidents so newsworthy. Fortunately, they are extremely rare. The most famous ones happened at Texas City (1947), Flixborough (1974), Seveso (1976), Pemex (1984) and Bhopal (1984).
Some of these are always in the minds of the people even though the loss of life was small. No one died at Seveso, and only 28 workers at Flixborough. The worst accident of all was Bhopal, where up to 3,000 were killed. The Texas City explosion of fertilizer killed 552. The Pemex fire at a storage plant for natural gas in the suburbs of Mexico City took 542 lives, just a month before the unfortunate event at Bhopal.
Some experts have discussed these accidents and used each accident to illustrate a particular danger. Thus the Texas City was caused by tons of ammonium nitrate, which is safe unless stored in a great quantity. The Flixborough fireball was the fault of management, which took risks to keep production going during essential repairs. The Seveso accident shows what happens if the local authorities lack knowledge of the danger
on their doorstep. When the poisonous gas drifted over the town, local leaders were incapable of taking effective action. The Pemex fire was made worse by an overloaded site in an overcrowded suburb. The fire set off a chain reaction of exploding storage tanks. Yet, by a miracle, the two largest tanks did not explode. Had these caught fire, then 3,000 strong rescue team and fire fighters would all have died.

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