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1、最新教学资料人教版英语Unit 4 第二课时.单项填空1_ the universe began with the “big bang” has been widely accepted.AWhetherBWhyCThatDWhat答案：C句意：宇宙开始于“大爆炸”已被广泛接受。从句中意义完整，只需要引导词，故选C。2It has been proved _ having a balanced diet helps to keep healthy.AifBbecauseCwhenDthat答案：D句意：据证明拥有一个均衡的饮食有助于保持健康。it为形式主语，后面从句为真正的主语，且从句意义完整
2、，故选D。3_ well go camping tomorrow depends on the weather.AIfBWhetherCThatDWhere答案：B由depends on the weather可知，此处应为“是否”之意，应用if或whether，而主语从句置于句首时只能用whether。故选B。4(2014莱阳高一检测)_ is a fact that English is being accepted as an international language.AThereBThisCThatDIt答案：D句意：英语正被接受成为国际性语言是一个事实。此处用it作形式主语，th
3、at从句为真正的主语。5_ made the parents proud was _ their son had been admitted to a key university.AWhat; becauseBWhat; thatCThat; whatDThat; because答案：B第一个空用what引导主语从句，what在该从句中充当主语；was后为表语从句，该从句中不缺少任何成分，故用that引导，且不可省略。故选B。6It worried him a bit _ his memory was becoming worse.AwhileBthatCifDwhat答案：Bit为形式主语
4、，真正的主语从句中不缺少任何成分，故用that引导主语从句，且不可省略。7(2014九江高一检测)_ their flight will arrive on time is _ they are concerned about.AWhether; whatBWhether; thatCWhen; whatDHow; that答案：A根据语境，主语从句应用whether引导，表示未定的事；what引导表语从句，在从句中作are concerned about的宾语。8_ makes the book so extraordinary is the creative imagination of
5、the writer.AThatBWhatCWhoDWhich答案：B主语从句缺少主语要用what引导。9When and why he came here _ yet.Ais not knownBare not knownChas not knownDhave not been known答案：A句意：他什么时候以及为什么来这儿还不知道。when and why引导的从句作主语，谓语动词用单数，且不被知道，故选A。10He left home several days ago. _ worries many people and is to be found out.AWhere he ha
6、s goneBWhere did he goCWhich place has he goneDWhere has he gone答案：A考查从句的语序。这是一个主语从句，需使用陈述句语序。故选A。11(2014烟台高一检测) Steve Jobs has gone but _ he has left behind is truly extraordinary.AthatBwhyCwhatDhow答案：C分析句子结构可知，“_he has left behind”是主语从句，且关系代词在从句中作宾语，故选what。12(2014天津，14)I think _ impress me about h
7、is painting is the colours he uses.AwhatBthatCwhichDwho答案：A考查名词性从句。句意：我认为关于他的绘画让我印象深刻的是他使用的颜色。impresses缺少主语，故用what引导名词性从句；that引导名词性从句，不作成分。13(2014泰安高一检测)_ is known to all is _ we won 38 gold medals in 2012 London Olympic Games.AIt; thatBAs; whatCWhat; thatDThat; what答案：C句意：众所周知，2012年伦敦奥运会上我们赢得了38枚金牌
8、。_is known to all是主语从句，从句中缺少主语，意为“所的”，应由what引导；第二个is后的部分是表语从句，且从句表陈述意义，应由that引导，且不可省略。故选C。14_ seems to be no possibility _ Li Hua can win the first prize in the 100meter race.AIt; thatBThere; thatCThere; whetherDIt; whether答案：BThere seems to be是固定表达；第二个空填that，引导同位语从句补充说明possibility的具体内容。故选B。15Why an
9、d how he came here _ yet.Ais not knownBare not knownChas not knownDhave not been known答案：A句意：他为什么及如何来这儿还不知道。Why and how引导的从句主语，谓语动词用单数，且不被知道，故选A。.完形填空The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class. In the pa
10、st 15 years，_1_have reported well over 100_2_that could have been caused by electromagnetic interference(干扰). The_3_of this interference remains unconfirmed，_4_increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radios and cassette players and mobi
11、le telephones.RTCA, an organization which_5_the aviation industry, has recommended that_6_airlines ban such electronic devices from being used_7_“critical”stages of flight，_8_takeoff and landing. Some experts have gone further，_9_for a total ban during all flights. Currently, rules on using these de
12、vices are_10_up to individual airlines. And although some airlines prohibit(禁止)passengers from_11_such equipment during takeoff and landing, most are reluctant to enforce a total ban. Many passengers want to work during flights.The_12_is predicting how electromagnetic fields_13_affect an aircrafts c
13、omputers. Experts_14_that portable devices emit radiation, which affects those wavelengths which_15_use for navigation and communication. But, they have not been able to_16_these effects in a laboratory; they have no_17_of knowing whether the interference might be_18_or not.The fact that aircraft ma
14、y be vulnerable(易受攻击)to interference_19_the risk that terrorist may use radio system in order to_20_navigation equipment.1A.driversBpilotsCengineersDconductors答案：B文章第一句已表明：当今航空公司面对的最大的安全威胁不是持枪的恐怖分子，而是手提电脑。所以对飞机上的这种事情最了解的应是飞行员，而不是A、C、D的那些人。2A.actionsBeventsCmattersDincidents答案：D此处指飞机上发生的这类事情。本题同样考查了词义辨析。incident指“较小的事件，插曲，小故事”，action是“(采取的)行动”之意，event是“大事件”，matter指“问题，事情，或麻烦事”等，均不合适。3A.reasonBeffectCsourceDstory答案：C根据下句话得知“手提电脑，移动电话”等这些电子装置应是“干扰源”，而不是受干扰的结果，受干扰的应当是飞机。reason不合适是因为reason接for而不接of，表示“的原因”。4A.andBforCbutDso答案：C“没有确认”(unconfirmed)与“在增加”(increasing)中间应是转折
