题目内容

______of danger in the street at night, she had to go home, with a friend ______ her.


  1. A.
    Warned; accompanied
  2. B.
    Warning; accompanying
  3. C.
    Having warned; accompanied
  4. D.
    Having been warned; accompanying
D
解析:

试题分析:考查分词用法。第一空考查了分词做状语的用法,动词warn与句子主语she构成被动关系,且警告的动作是在她回家之前就发生的,故使用现在分词的完成被动式。第二空考查了分词做定语,因为动词accompany与a friend构成主动关系,使用现在分词表示主动。句意:已经被警告了晚上街上有危险,她不得不回家,有一个朋友陪着她。故D正确。
考点:考查分词用法
点评:考查分词做状语。当分词做状语的时候,如果构成分词的动词与名词构成主动关系,就使用现在分词做状语和定语;当二者构成被动关系,使用过去分词做状语和定语。如果分词的动作发生在谓语动词之前,就使用分词的完成式。如果分词与句子的主语没有关系,可以使用状语从句或者独立主格结构。
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阅读理解

  Radioactivity is dangerous. It may cause skin burns; it may destroy good tissues (组织) and it may cause illness that could be passed on to our children and grandchildren, In case of exposure (暴露) it may even cause death.

  In the early days of radioactivity, scientists did not realize these dangers, Marie and Pierre Curie, after having worked for a while with radioactive materials, noticed that their fingers were reddened and swollen (红肿) and the skin was peeling off. Henry Becquered carried a small tube with radium in it in his waistcoat pocket, and was surprised to find a burn on his chest. Other early workers also reported burns and harm of different kinds.

  The strange fact that it can harm without causing pain is the warning signal we expect from harmfulness. Pain makes up pull back our hands from a fire or a hot object, but a person carrying radioactive materials had no way of telling whether he is touching something too “hot” for safety. Besides, the “burns” or other harmfulness that radioactivity produces may not appear for weeks. A person may have been hurt without knowing it for some time .

1.Which is the topic sentence?

[  ]

A.Radioactivity May Even Cause Death.

B.Radioactivity Does Great Harm to Children.

C.Radioactivity May Do Harm to People without Being Known.

D.Radioactivity is Dangerous.

2.A few people were mentioned in the passage .They ________.

[  ]

A.were all famous scientists of great achievements

B.died of radioactivity

C.knew little about radioactivity

D.did experiments on themselves to find the danger of radioactivity

3.According to the point of the passage , pain ________.

[  ]

A.causes people to die
B.brings people suffering
C.is an important signal
D.is very much expected

4.The latter part of the passage is mainly written about ________.

[  ]

A.the danger to be with the radioactive materials

B.how scientists are selflessly devoted to science, in face of danger

C.the danger of radioactivity lies mainly in its being unseen and unknown for a time

D.burns and harm of all kinds that may dangerously happen around us

5.The sentence in the fourth line of the second paragraph, “the skin was peeling off” means “the skin was ________”.

[  ]

A.coming off
B.turning off
C.breaking away
D.fleeing

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