2017版高考英语大一轮复习 Unit 4 Astronomy the science of the stars课堂达标 新人教版必修3.doc

Unit 4 Astronomy the science of the stars Ⅰ.单句语法填空 1．It is obvious __what__ the local government can do to protect the environment for future generations. 解析：句意：为了子孙后代，当地政府在保护环境方面所能做的事情是显而易见的。It为形式主语，________ the local government can do to protect the environment for future generations是真正的主语，该主语从句缺少宾语，且表示物，故填what。 2．New technologies have made __it__ possible to turn out new products faster and at a lower cost. 解析：考查it作形式宾语。 3．All possible means __have_been_taken__(take) to prevent the river __being_polluted__ (pollute)． 解析：考查主谓一致和非谓语动词。 4．If they win the final tonight, the team are going to tour around the city __to_be_cheered__(cheer) by their enthusiastic supporters. 解析：考查非谓语动词。 5．The meeting was held in a lively atmosphere __where__ everybody felt to share his ideas. 解析：考查定语从句。从句中缺少地点状语，故填where。 6．During those four years, he worked day and night, thus __improving__(improve) his theory gradually until it was complete. 解析：考查v-ing形式作结果状语。 7．Those reports included one case, __where/in_which__ a fire broke out and destroyed two cars，although there were no injuries. 解析：考查非限制性定语从句。 8．I suppose by the time I come back in ten years time all these old houses will __have_been_pulled__ (pull) down. 解析：考查时态和语态。 9．Sometimes he found __it__very hard to fall asleep at night, so he went to see the doctor. 解析：考查it作形式宾语。 10．Susan made __it__ clear to me that she wished to make a new life for herself. 解析：本题考查代词的运用。句意：苏珊清楚地跟我表明她希望为自己创造新的生活。分析句子结构可以看出，该句中包含一个that引导的从句，而且根据语境可知，that从句的内容就是苏珊向我表明的事情，所以后置的that从句实际上是made的真正宾语，故用形式宾语it指代that从句。 11．The manager wants to see changes in the company, and I am sure he will __in__ time. 解析：句意：经理想要看到公司的改变，我确信他迟早会看到的。in time“及时；最后，迟早”，符合题意。 12．It remains to be seen __whether__ the newly formed committees policy can be put into practice. 解析：本题考查名词性从句。句意：那仍然得看新形成的委员会政策能否付诸实践。It在此为形式主语，故seen后为真正的主语从句，又由remains to be seen可知存在不确定的意思，所以用whether是否。 13．The top leaders of the two countries are holding talks in a __friendly__(friend) atmosphere. 解析：句意：两国高层领