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概括大意与完成句子(第23~30题，每题1分，共8分)

下面的短文后有2项测试任务：(1)第23~26题要求从所给的6个选项中为第2~5段每段选择1个最佳标题;(2)第27~30题要求从所给的6个选项中为每个句子确定1个最佳选项。

Clinical Trials

1Many clinical trials are done to see if a new drug or device is safe and effective for people to use.Sometimes clinical trials are used to study different ways to use the standard treatments so they will be more effective,easier to use,and/or decrease side effects.Sometimes,studies are done to learn how to best use the treatment in a different population,such as children,in whom the treatment was not previously tested.

2It is important to test drugs and medical products in the people they are meant to help.It is also important to conduct research in a variety of people because different people may respond differently to treatments.Some people participate in clinical trials because they have exhausted standard treatment options.Other people participate in trials because they want to contribute to the advancement of medical knowledge.

3The FDA(食品及药物管理局)works to protect participants in clinical trials and to ensure that people have reliable information as they decide whether to join a clinical trial.Although efforts are made to control the risks to clinical trical participants,some risks may be unavoidable because of the uncertainty inherent(内在的)in medical research studies involving new medical treatments.

4People should learn as much as possible about the clinical trials that interest them.They should also feel comfortable discussing their questions and concerns with members of the health care team.Prospective(预期的)participants should understand what happens during the trial,the type of health care they will receive,and any costs to them.Anyone considering a clinical trial should also know that there are benefits and risks associated with participating.

23.Paragraph 1 ________.

24.Paragraph 2 ________.

25.Paragraph 3 ________.

26.Paragraph 4 ________.

A.Why are clinical trials done?

B.Where are clinical trials conducted?

C.Who should consider clinical trials and why?

D.What should people know before participating in a clinical trial?

E.What are clinical trials?

F.Are clinical trials safe?

27.New drugs or devices must be tested before being used.

28.Clinical trials provide the only hope.

29.Reliable information should be available to.

30.Learn as much as you can about a clinical trial.

A.for some patients

B.before participation

C.in humans

D.medical knowledge

E.during the trial

F.candidates for clinical trials

参考答案：23.A24.C25.F26.D27.C28.A29.F30.B