[填空题]Athletes should avoid certain kinds of supplements, for they may cause side effects which will do harm to the athletes.

[填空题]Athletes should avoid having drinks containing caffeine, for they are hundred-percent harmful to the athletes’ sports performance.

[单项选择]Passage One Children should avoid using mobile phones for all but essential calls because of possible health effects on young brains. This is one of the expected conclusions of an official government report to be published this week. The report is expected to call for the mobile phone industry to refrain from promoting phone use by children, and start labeling phones with data on the amount of radiation they emit. The independent Expert Group on Mobile Phones, chaired by former government chief scientist William Stewart, has spent eight months reviewing existing scientific evidence on all aspects of the health effects of using mobile phones. Its report is believed to conclude that because we don’t fully understand the nonthermal effects of radiation on human tissue, the government should adopt a precautionary approach, particularly in relation to children. There is currently no evidence that mobile phones harm users or people living near transmitter masts. But some studi
A. the government should prohibit children from using cell phones
B. we should put down the phone for the sake of safety
C. the industry can have a right to promote phone use
D. children are safe using cell phones

[单项选择]You should avoid ______ when you join them for the first rehearsal.
A. from being mocked at
B. being mocked at
C. to be mocked at
D. mocking at

[填空题]You should avoid (make) ______ noisy during the meeting.

[填空题]You should avoid (meet) ______ her in the street.

[多项选择]Some people believe that certain areas should remain undeveloped in their original states in order to protect the animals and plants there even though indigenous people live in poverty. Do you agree or disagree with this point of view

[填空题]In some countries certain kinds of insurance are compulsory. In others, most kinds are{{U}} (36) {{/U}}unknown. In addition, the cost of insurance and the type of coverage provided vary widely from country to country. But the{{U}} (37) {{/U}}principle of insurance-sharing risk- remains the same. Naturally, the more property a person owns, the more he has to lose. Similarly, the more family{{U}} (38) {{/U}}a person has, the greater the impact if he or she dies or becomes physically disabled. Having insurance can reduce one’s concern about the{{U}} (39) {{/U}}of suffering a loss of property or a disabling accident. Yet, is it wise to spend money on insurance even though a claim may never be made Is keeping a spare tire in the car a wasted investment, even if the tire is never needed The sense of security to the car driver may make the expense of the extra tire{{U}} (40) {{/U}}. While{{U}} (41) {{/U}}compensation cannot make up for certain losses, it may compensate