题目内容

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

A．Warning; followingB．Having warned; following
C．Warned; followedD．Having been warned; following

D

解析试题分析：句意，由于她被警告晚上在街上有危险，所以她不得不跟着一个朋友回家。根据题意分析可知这里需要现在分词作原因状语，而主语“她”和分词动作“警告”之间是被动关系，所以应使用被动形式，并且她被警告这个动作发生在她回家之前，故应用现在分词的完成式的被动形式。对于第二个空，“朋友”和“跟随”是主动关系，所以应用现在分词的一般式的主动形式。
考点：考查现在分词的用法
点评：要掌握非谓语动词的用法，善于确定时态，语态。可以通过分析分词和主语的关系确定,还可以根据上下文来确定.

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　　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

The patient was ___of losing his life and had to be operated on at once.   

A. in danger    B. in the danger    C. out of danger   D. out of the danger

 

 Some parents are just too protective. They want to _______ their kids from every kind of danger, real or imagined.

A. spot                                  B. warn                               C. shelter                      D. assist

 

______ of danger in the street at night by police, young women had to go home with a friend or a family member ______ them.

A. Having been warned; following    

B. warning; following

C. Having warned; following

D. warned; followed

 

After running past the finishing line, she was        .

A．out of control      B．out of danger       C．out of breath       D．out of trouble

 

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