2019-2020学年高中英语 Unit21 Human Biology Section Ⅳ 课时跟踪检测课下作业 北师大版选修7.doc

2019-2020学年高中英语Unit21 Human Biology Section Ⅳ 课时跟踪检测课下作业北师大版选修7Ⅰ.单项填空1．A new law ________ the whole nation has been passed.A．benefited B．benefitingC．benefit from D．benefited from解析：选B。

考查benefit的用法。

benefit“有益于”；benefit from“从……中受益”。

句中benefit作主语的定语，为主动关系，可排除A、D。

根据句意“一项有益于整个民族的新法令已经被通过了。

”可知应选B。

2．Although difficult, she finished the job on time, so I think she certainly deserved ________.A．being praised B．to be praisedC．to praise D．having praised解析：选B。

句意：尽管难，她还是准时完成了这项工作，因此我认为她理应受到表扬。

deserve doing/deserve to be done“某事值得被做”。

故选B项。

3．Air pollution is one of the problems that we can't afford to ________.A．ignore B．sufferC．request D．bury解析：选A。

考查动词词义辨析。

句意：大气污染是我们不能忽视的问题之一。

ignore“忽视；置之不理”；suffer“遭受(痛苦)”；request“要求”；bury“埋葬”。

根据句意选择A项。

4．Everyone in the village hoped that he would ________ after a few days' treatment.A．pick up B．come upC．keep up D．make up解析：选A。

考查短语辨析。

句意：村子里的每个人都希望经过几天的治疗后，他会好转。

pick up“好转”；come up“被提出，出现”；keep up“保持”；make up“构成”。

故选A项。

5．These flowers need special care ________ they can live through winter.A．because B．even ifC．so that D．as解析：选C。

考查连词辨析。

句意：这些花需要特殊照看，这样才能度过冬季。

so that引导目的状语从句。

故选C项。

6．You have made a few mistakes but ________ you have done well.A．on the whole B．as a wholeC．in whole D．wholly解析：选A。

句意：你犯了几处错误，但总的来说你做得很好。

as a whole着重于从整体上而不是将事情分开考虑；on the whole表示“大体上，并非百分之百”之意；in whole“全部”；wholly“完整地，整个地”。

7．If Henry had not pulled his cap low over his brow, he ________ by the police.A．might be recognizedB．might have been recognizedC．would have recognizedD．was to have been recognized解析：选B。

考查情态动词＋have done的用法。

根据If Henry had not pulled his cap low over his brow可知所说是过去的情况，所以主句用would/could/might have done, 又因为句中主语与recognize间为被动关系，故选B项。

8．The thief insisted that he was innocent, but the eyewitness ________ his words.A．supported B．contradictedC．contributed D．violated解析：选B。

句意：那个小偷坚持说自己是无罪的，但是他的话与目击者(的话)相矛盾。

contradict “与(其他事物)相矛盾”，符合题意。

support“支持，拥护；支撑”；contribute“贡献”，为不及物动词，常与介词 to 搭配；violate“违反，违背；侵犯”。

9．He was generally ________ as the finest poet in the land.A．received B．regardedC．imagined D．appointed解析：选B。

句意：他被公认为是该领域最优秀的诗人。

regard sb. as ...“认为某人是……”，符合句意。

10．If you ________ that late movies last night, you wouldn't be so sleepy.A．haven't watchedB．didn't watchC．hadn't watchedD．wouldn't have watched解析：选C。

该句是混合条件句。

主句是对现在情况的假设，而从句是对过去情况的假设。

故选C项。

11．—Sorry, Professor Smith. I didn't finish the assignment yesterday.—Oh, you ________ have done it as yesterday was the deadline.A．must B．mustn'tC．should D．shouldn't解析：选C。

答句句意：哦，你本该做完的，因为昨天是最后期限。

此处用should have done表示“本该做某事(实际上未做)”。

12．Some children ________ because their parents can't afford to pay for school trips.A．go out B．miss outC．take out D．come out解析：选B。

句意：一些孩子错失了机会，因为他们的父母负担不起学校组织的旅行。

miss out表示“错失(获利或取乐等的)机会”。

13．Cloning is especially ________ because it raises many problems.A．controversial B．compulsoryC．complicated D．completed解析：选A。

考查词义辨析。

句意：克隆技术特别有争议，因为它引起了很多问题。

compulsory“强制性的，义务的”；complicated“复杂的”；completed“完整的”。

故选A项。

14．Mr. Bush is on time for everything. How ________ it be that he was late for the opening ceremony?A．can B．shouldC．may D．must解析：选A。

表示推测时，must用于肯定句中，can用于疑问句或否定句中。

故选A。

15．If you hadn't taken such a long time to get dressed, we ________ there by now.A．would be B．areC．were D．will be解析：选A。

从句表示对过去情况的假设，而主句表示对现在情况的假设，故此处用“would＋动词原形”。

Ⅱ.完形填空Thanksgiving Day was near. The first grade teacher gave her class a fun assignment － to draw a picture of something for which they were __1__. Most of the class might be a little poor, __2__ still many would __3__ the holiday with turkey and other traditional goodies. These, the teacher thought, would be the __4__ of most of her students' pictures. And they __5__.But Douglas made a __6__ kind of picture. Douglas was a different kind of boy. He was the teacher's true child of misery, frail (脆弱的) and __7__. __8__ other children played at break, Douglas was likely to stand close by her side. One could only __9__ at the pain Douglas felt behind those sad eyes.Yes, his picture was different. When asked to draw a picture of something for which he was thankful, he drew a hand. __10__ else. Just an empty hand. Whose hand __11__ it be? This aroused a heated discussion among the children and the discussion went － __12__ the teacher almost forgot the young artist himself.When the children had gone on to __13__ assignments, she __14__ at Douglas' desk, bent down, and asked him whose hand it was. The little boy looked away and murmured, “It's __15__，teacher.” She __16__ the times she had taken his hand and walked with him here or there, as she had the other students. How __17__ she had said, “Take my hand, Douglas, we'll go outside.” Or, “Let me show you how to __18__ your pencil.” Or,“Let's do this together.” Douglas was __19__ thankful for his teacher's hand.__20__ aside a tear, she went on with her work.1．A.sorry B．thankfulC．anxious D．patient解析：选B。