Unit 3 Inventors and inventions Ⅰ.单词拼写 1．Success in money－making is not always a good c_____ of real success in life. 2．It’s f_____ outside. You’d better put on more clothes. 3．The packet of white p_____ the police found in his room turned out to be cocaine. 4．What we need is a s_____ government. 5．Your invention is ingenious, but not very p_____. criterion freezing powder stable practical 6．He is _____(清白的，无罪的) of the charge. 7．He_____ (使……扬名) himself by his courage at that time. 8．I keep my reference books near my desk for _____ (方便)． 9．He ate a light lunch in _____ (期望) of a good dinner. 10．She likes inventions and she has applied for _____ (专利)． innocent distinguished convenience expectation patent Ⅱ .单项选择 1．－Jack, you _____ on the phone. －_____. A．are wanted; Coming B．are needed; I’m coming C．are called; I’ll come D．are rung up; Thanks 答案：A 解析：考查电话用语。叫人接电话时常用表达有：You are wanted on the phone. /There is a call for you./ For you.回答用：I’m coming.或Coming. 2．Whoever invented _____ wheel is believed to have made _____ most useful invention in _____ history. A．a; the; / B．the; the; / C．the; /; / D．a; a; the 答案：B 解析：发明物的前面必须用 the；第二空用 the表示最高级，故加定冠词 the; in history 为固定搭配，意为“在历史上”，不加任何冠词。 3．Water can absorb and give off a lot of heat without big changes in temperature, thus creating a _____ environment. A．peaceful B．sensitive C．common D．stable 答案：D 解析：A项“平静的”；B项“敏感的”；C项“共同的”；D项“稳定的”。句意为：水能吸收和放出许多热量，这在温度上没有大的变化，因而就创造出了一个稳定的环境。 4．Having decided to rent a flat, we _____ contacting all the accommodation agencies in the city. A．set about B．set down C．set out D．set up 答案：A 解析：考查动词短语。set about doing＝set out to do开始着手做某事；set down 写下，记下；set up 建立。 5．Color blind people often find it difficult to _____between blue and green. A．separate B．distinguish C．compare D．contrast 答案：B 解析：句意为：色盲的人经常感到很难区分蓝色和绿色。separate “分离，分开”，但与 between 不能连用；distinguish between “分辨，辨别”；compare (to/with) 比较，对照；contrast (with) 形成对比。 6．When we plan our vacation, Mother often offers _____ suggestions. A．careful B．practical C．effective D．acceptable 答案：B 解析：本题考查形容词词义辨析。careful “仔细的，小心的”；practical “可行的，实用的”；effective “有效的，生效的”；acceptable “可接受的，受到欢迎的”。本句的意思是：当我们计划假期的时候，妈妈经常提出实用、可行的建议。因此B项最佳。 7．—Are you ready to leave? —Almost. I'll be ready to go as soon as I _____ putting the clean dishes away. A．get through B．give up C．go on D．set about 答案：A 解析：get through (doing) sth. 完成某事。give up (doing) sth. 放弃；go on doing 继续；set about doing 开始做。 8．I am sure that Laura's latest play, _____ staged, will prove a great success. A．since B．unless C．once D．until ... ...
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