1.I never seen anyone run so fast----just watch David go.请帮我

1.I never seen anyone run so fast----just watch David go.请帮我分析下破折号后的成分.
2.——with no way to reduce her pain and suffering from the terrible disease,the patient sought her doctor's help to end her life.
A.Having given up hope of cure B.With no hope for cure为什么选B,不用A?
3,___ and I'll get the work finished.
A.One more hour B.Given one more hour为什么选A,不选B?
4.The glass doors have taken the place of the wooden ones at the entrance,___in the natural light during the day.
A.to let B.leting为什么选B,不用A?
5.What are you thinking of ___ rid of the flies?
A.to get B.getting为什么选A,不选B?
6.I hear Warren ____ in a middle school.
A.teach B.teaches为什么选B,不用A?

1.I never seen anyone run so fast----just watch David go.请帮我分析下破折号后的成分.
破折号后面的内容是用来补充说明的,我从没见过有人跑这么快--- 只看到大卫跑这么快.
2.——with no way to reduce her pain and suffering from the terrible disease,the patient sought her doctor's help to end her life.
A.Having given up hope of cure B.With no hope for cure为什么选B,不用A?
这里选B和后面的with no way形式并列.
3,___ and I'll get the work finished.
A.One more hour B.Given one more hour为什么选A,不选B?
这是固定句型.祈使句+and/or+简单句.前面的祈使句省略了Give me 后成为为名词词组了.
如果选B,那么要把连词and去掉,因为并列连词要连接两个并列的成分或者句子.
4.The glass doors have taken the place of the wooden ones at the entrance,___in the natural light during the day.
A.to let B.leting为什么选B,不用A?
letting in the ...是现在分词作状语,表示自然而然的结果.
如果选A,to let是不定式做目的状语,而句子的主语the glass doors不是to let的逻辑主语.
比较：They have used glass doors in place of wooden ones to let in the natural light...
5.What are you thinking of ___ rid of the flies?
A.to get B.getting为什么选A,不选B?
这里选A 是不定式做目的状语.think of的宾语是what,而不是后面的get rid of...
翻译：你在考虑什么方法来清除苍蝇呢?
6.I hear Warren ____ in a middle school.
A.teach B.teaches为什么选B,不用A?
选A,语法上正确,但是不定式作宾补时表示事情发生的整个过程.所以“我听见Warren在一个中学教书的过程”似乎不太恰当.如果改为teaching就可以了.
而选B.这里的hear意思是“听说”,后面可以接that引导的宾语从句,that省略了.
这句话的意思是“我听说Warren在一所中学教书.”
加油!