2013高中英语 Unit21 Human Biology Section Ⅱ 课时跟踪检测课下作业 北师大版选修7.docVIP

Section Ⅱ Brain Power Epidemics Explained Ⅰ.单词拼写 1．Its said that our exam has been postponed (延期) until next Monday. 2．He scanned (扫视) her face but there were no signs of emotion. 3．There is ample (充足的) evidence to prove his guilt. 4．We feel very privileged (荣幸的) to have the chairman of the committee of Foreign Affairs as our distinguished guest. 5．The table can be folded flat for easy storage (储存)． 6．The government foresaw (预知) that there would be a rapid reduce in unemployment. 7．Many volunteers went there to help rebuild (重建) the houses after the earthquake. 8．I prefer to live in the countryside rather than live in the urban (城市的) areas. 9．Fever and cough are often symptoms (症状) of a bad cold. 10．Students are required to do a thorough (彻底的) cleaning once a week. Ⅱ.单项填空 1．The sign said that unauthorized persons were prohibited ________ that restricted areas. A．by entering　　　　　　　　　B．from entering C．to enter D．entering 解析：选B。prohibit someone from doing something“禁止某人做某事”，亦可用作prohibit someones doing something。 2．What really ________ is not failure itself, but the attitude we have towards it. A．matters B．applies C．stresses D．functions 解析：选A。考查动词辨析。句意：重要的不是失败，而是我们对待失败的态度。matter“重要的是”。apply“申请，应用”；stress“强调”；function“起作用”。故选A项。 3．John received an invitation to dinner, and with his work ________， he gladly accepted it. A．was finished B．finishing C．having finished D．finished 解析：选D。考查with＋宾语＋宾语补足语结构。根据he gladly accepted it可知工作已做完；work与finish之间应为被动关系，故用过去分词表示被动和完成。 4．Canada is a country which ________ people who come from all over the world. A．consisted of B．consists of C．was consisted of D．was consisting of 解析：选B。考查短语用法。句意：加拿大是一个由来自世界各地的人组成的国家。consist of不用被动语态，也不用进行时态。故选B项。 5．________ for a whole day, I felt worn out and didnt want to cook supper. A．Working B．Worked C．Having worked D．Had worked 解析：选C。考查having done作状语的用法。主语I与work之间为主动关系，所以应用动词-ing形式表示，不可用过去分词；doing作状语表示该动作与谓语动词同时或几乎同时进行；having done作状语表示该动作比谓语动词发生的要早且时间先后关系明显；worked与had worked为过去时和过去完成时，不可直接作状语，故