Unit 3 Inventors and inventions grammar课时作业

Ⅰ.单句语法填空

　　1．Father is strongly opposed to ________ (go) shopping on Sunday because the streets and supermarkets are full of people.

　　答案：going　be opposed to ... "反对......"，其中to为介词，其后应接名词、动名词作宾语。

　　2．The prices of this kind of wine ranged ________ ten yuan ________ 100 yuan per bottle.

　　答案：from; to　range from ... to ... "在某范围内变化"。

　　3．Though he is less than one year old, he is strong enough to walk ________ (steady)．

　　答案：steadily　副词作状语，在句中修饰动词walk。

　　4．Do you know how the accident came ________ ?

　　答案：about　come about "发生"。

　　5．With Spring Festival approaching, prices of fruit and vegetables ________ (go) up.

　　答案：have gone　go up "上升；增长；升起"。

　　6．Quantities of money ________ (spend) in bringing up the children since they were married.

　　答案：have been spent　"a quantity of＋名词"作主语时，谓语动词与名词的数保持一致；而"quantities of＋名词"作主语时，谓语动词用复数。且由since可知应用现在完成时，再根据money与spend之间的被动关系，故填have been spent。

　　7．How many times do you dine out per week ________ average?

　　答案：on　on average "平均起来；平均来说"。句意：你平均每周在外用餐多少次？

　　8．Under these ________ (circumstance), what matters most is not only our persistence but also our attitude.

　　答案：circumstances　under these circumstances "在这些情况下"。

　　9．The gap between the rich and the poor has a ________ (tend) to become wider and wider.

　　答案：tendency　由设空前的a可知，应填名词形式，tendency "趋势；倾向"。

　　10．The heavy snow can easily result ________ many accidents in winter.

　　答案：in　result in "导致"。

　　Ⅱ.单句改错

　　1．The doctor treated average of 20 patients per day.

　　______________________________________________________

　　答案：average前加an　an average of ... "平均有......"。

　　2．It always take me two hours to finish my homework.

　　______________________________________________________

答案：take→takes　It takes/took sb. some time to do sth. "某人花费......时间做某事"，本句描述一般事实。