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

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1、SectionⅡBrainPower&EpidemicsExplainedⅠ.单词拼写1．It'ssaidthatourexamhasbeenpostponed(延期)untilnextMonday.2．Hescanned(扫视)herfacebuttherewerenosignsofemotion.3．Thereisample(充足的)evidencetoprovehisguilt.4．Wefeelveryprivileged(荣幸的)tohavethechairmanofthecommitteeofForeignAffairsasourdistinguishedguest.5．Theta

2、blecanbefoldedflatforeasystorage(储存)．6．Thegovernmentforesaw(预知)thattherewouldbearapidreduceinunemployment.7．Manyvolunteerswenttheretohelprebuild(重建)thehousesaftertheearthquake.8．Iprefertoliveinthecountrysideratherthanliveintheurban(城市的)areas.9．Feverandcoughareoftensymptoms(症状)ofabadcold.10．Students

3、arerequiredtodoathorough(彻底的)cleaningonceaweek.Ⅱ.单项填空1．Thesignsaidthatunauthorizedpersonswereprohibited________thatrestrictedareas.A．byentering　　　　　　　　　B．fromenteringC．toenterD．entering解析：选B。prohibitsomeonefromdoingsomething“禁止某人做某事”，亦可用作prohibitsomeone'sdoingsomething。2．Whatreally________isnotfail

4、ureitself,buttheattitudewehavetowardsit.A．mattersB．appliesC．stressesD．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．Johnreceivedaninvitationtodinner,andwithhiswork________，hegladlyacceptedit.A．wasfinishedB．finishing10C．havingfinishedD．finishe

5、d解析：选D。考查with＋宾语＋宾语补足语结构。根据hegladlyacceptedit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．Canadaisacountrywhich________peoplewhocomefromallovertheworld.A．consistedofB．consistsofC．wasconsistedofD．wasconsistingof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。consistof不用被动语态，也不用进行时态。故选B项。5．________forawholeday,I

6、feltwornoutanddidn'twanttocooksupper.A．WorkingB．WorkedC．HavingworkedD．Hadworked解析：选C。考查havingdone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；havingdone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hadworked为过去时和过去完成时，不可直接作状语，故选C。6．Theissueofshorteningtheschooltimetofourdaysandahal

7、feveryweek________atthemeeting.A．cameupB．cameoutC．cametoD．cameat解析：选A。考查come的短语区别。句意：把上学时间缩短到每周四天半的问题在会上提了出来。comeup“(问题等)被提出”。故选A项。7．Itisreportedthattheepidemic________halfthetown'spopulation.A．wipedoutB．bl