Unit 3 Inventors and inventions grammar课时作业

Ⅰ.单句语法填空

　　1．This machine is very easy ________ (operate). Anybody can learn to use it in a few minutes.

　　答案：to operate　主＋be＋adj.＋to do ... 为固定句式。其中to do以主动形式表被动含义。

　　2．We are dying ________ (know) the results after every exam.

　　答案：to know　be dying to do ... "渴望/极想做某事"。

　　3．We have made an ________ (adjust) to our price and give you a special discount of 3 percent.

　　答案：adjustment　make an adjustment to ... "对......作出调整"。

　　4．There is no need ________ (put) the meeting ahead because we still have three weeks before the end of the term.

　　答案：to put　There is no need to do ... "没有必要做某事"。

　　5．Alice stood at the window from ________ she could see the scenery of the park.

　　答案：where　句意：艾丽斯站在窗前，从那里她可以看到公园的景色。该句为from where 引导的定语从句。

　　6．Who will be in charge of the ________ (distribute) of food and clothing to the flood victims?

　　答案：distribution　定冠词the后应为名词形式，故填distribution。

　　7．Not the teacher but the students ________ (be) hoping to go there.

　　答案：are　not ... but ... "不是......而是......"，当连接两主语时，谓语动词的数遵循就近原则，故填are。

　　8．In a word, we should offer our help and love to the persons ________ need.

　　答案：in　in need "在困难中；在危急中"。

　　9．I doubt ________ he is fit for the job.

　　答案：whether　doubt用于肯定句，后面常用whether引导宾语或同位语从句。I doubt whether ... "我怀疑是否......"。

　　10．The problems of global warming cannot be solved without the ________ (participate) of all countries.

　　答案：participation　分析句子结构及由介词without和定冠词the可知，应填participate的名词形式。

　　Ⅱ.单句改错

　　1．The house stands at the place that the two roads meet.

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　　答案：that→where　where在此处是定语从句的引导词，替代先行词place并在从句中作地点状语。

2．Deeds are better than words when people are in need help.