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1 .The word “accident” (Para. 2) can be best replaced by ______.
A way B chance C happening D incident
2 .According to the passage, during the experiment, why did the screen glow?
A Because the light was on. B Because it was very bright. C Because it was barium compound. D Because of X-rays.
3 .What is the main idea of the passage?
A Roentgen discovered X-rays. B The usage of X-rays. C An experiment made by Roentgen D The discovery of X-rays and its medical usage.
4 .According to the passage, which of the following is NOT true?
A Eating less than usual might make us live longer. B If we go on a diet when old, we may keep healthy. C Dieting might not be needed. D We have to begin dieting from childhood.
5 .According to the last two paragraphs, Sindler believes that____.
A calorie restriction is very important to young people B seeing the effect of a diet, people will eat less than normal C dieting is not a good method to give us health and a long life D drugs do not have the effects of calorie restriction
7 .2.
A insects B birds C fish D snakes
8 .3.
A effect B affect C effected D affected
9 .4.
A because B for the reason that C because of D since
10 .5.
A months B days C minutes D weeks
