1、考点双向联动单元目标领航高效课时作业Unit 4 Astronomy：the science of the stars考点双向联动单元目标领航高效课时作业.单词速检1_(n.)天文学2_(n.)系统；体系；制度3_(n.)学说；理论4_(n.)大气层；气氛5_(adj.)基本的；基础的自我诊断：1.astronomy 2.system 3.theory 4.atmosphere 5.fundamental考点双向联动单元目标领航高效课时作业6_(adv.)因此；于是7_(vt.&vi.)(使)迷惑；(使)为难(n.)谜；难题8_(adj.)温和的；文雅的9_(vi.&vt.)碰撞；坠落10_(
2、n.&vt.)拉(力)；拖；牵引力11_(vi.&vt.)(使)浮动；(使)漂浮(n.)漂浮物自我诊断：6.thus 7.puzzle 8.gentle 9.crash 10.pull 11.float考点双向联动单元目标领航高效课时作业12_(adj.)猛烈的；激烈的；强暴的_(n.)暴力_(adv.)暴力地；猛烈地13_(prep.)不同；不像_(vt.)喜欢；(prep.)相像的_(adj.)可能的14_(adj.)有害的_(n.&v)伤害_(adj.)无害的15_(vi.)存在；生存_(n.)存在；生存自我诊断：12.violent；violence；violently 13.unli
3、ke；like；likely 14.harmful；harm；harmless 15.exist；existence考点双向联动单元目标领航高效课时作业.短语回顾1及时；终于_2产生；分娩_3轮到某人；接着_4阻止；制止_5挡住(光线)_自我诊断：1.in time 2.give birth to3in ones turn 4.prevent.from5block out考点双向联动单元目标领航高效课时作业6感到高兴；感到振奋_7既然_8突发；爆发_9密切注视；当心；提防_10和；以及_自我诊断：6.cheer up7now that 8.break out9watch out 10.as w
4、ell as考点双向联动单元目标领航高效课时作业.句式填空1what 引导的主语从句_(它 会 变 成 什 么 样)was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.2so.that.如此以至于The earth became _(如此猛烈以至于)it was not clear whether the shape would last or not.自我诊断：1.What it was to become2so violent that考点双向联
5、动单元目标领航高效课时作业3it 作形式宾语的用法This produced a chain reaction，which _(使得生命得以发展)4英语倍数表示法But when I tried to step forward，I found I was carried _(两倍远)on the earth and fell over.自我诊断：3made it possible for life to develop4twice as far as考点双向联动单元目标领航高效课时作业本单元语法主语从句1(2012年山东卷，25)It doesnt matter _ you pay by ca
6、sh or credit card in this store.Ahow BwhetherCwhat Dwhy解析：考查名词性从句。句意：在这家店里，你用现金或信用卡支付都可以。“It”是形式主语，根据后面“by cash or credit card”确定此处应该用whether引导主语从句。答案为B。答案：B考点双向联动单元目标领航高效课时作业2(2012年成都质检)It is no longer a question now _ the Chinese astronauts can wave our national flag in outer space.Awhere Bwhether
7、Cthat Dwhat解析：考查主语从句。it为形式主语，that引导的从句作真正的主语。句意：中国人能在太空挥舞中国国旗，这不再是一个问题了。答案：C考点双向联动单元目标领航高效课时作业3(2012年唐山模拟)It makes his life quite different _ he has received higher education abroad.Athat BwhichCwhat Dhow解析：考查主语从句。本句中的it是形式主语，真正的主语是“that he has received higher education abroad”。答案：A考点双向联动单元目标领航高效课时作
8、业4(2012年温州模拟)Please remember _ wins your respect is not your background but your knowledge and virtues.Athat BwhatCwhich Dwhere解析：考查主语从句。句意：请记住，为你赢得尊重的不是你的背景，而是你的知识和美德。题干中remember之后为宾语从句，其中，what wins your respect又为主语从句。答案：B考点双向联动单元目标领航高效课时作业5(2012年河南四市联考)_ you dont like him is none of my business.AW
9、hat BIfCThat DWhether解析：考查主语从句。that引导主语从句，在从句中不作成分；what引导主语从句时充当句子成分；if不能引导主语从句位于句首；whether是否，不合题意。由语意可知C项正确。答案：C考点双向联动单元目标领航高效课时作业第一板块 词汇精讲1exist vi.存在；生存回归课本P26They laid eggs too and existed on the earth for more than 140 million years.它们也生蛋，在地球上存在了14000多万年。考点双向联动单元目标领航高效课时作业 归纳拓展(1)exist in 存在于之中
10、 exist on 靠为生 There exists/existed.某地有；存在(2)existence n.存在；生存 come into existence 产生；成立；开始存在 bring into existence 使发生；产生 in existence 存在考点双向联动单元目标领航高效课时作业英文典例Poverty still exists in this country.贫穷在这个国家依然存在。They are paid hardly enough to.他们收入微薄，几乎无法维持生活。There exists a lake on the top of the mountain
11、.山顶上有一个湖。Pakistan as an independent country after the war.巴基斯坦在战后就以一个独立的国家存在了。came into existenceexist on考点双向联动单元目标领航高效课时作业2puzzle vt.使迷惑；使为难；使窘困；感到迷惑 n(游戏的)猜谜；难题；谜回归课本P27How life began on earth is one of the biggest puzzles that scientists found hard to solve.地球生命如何起源是科学家们觉得很难解决的最大的难题之一。考点双向联动单元目标领
12、航高效课时作业 归纳拓展(1)puzzle over/about sth.苦苦思索；仔细琢磨 puzzle sth.out 琢磨出的答案 a puzzle to sb.某人不懂(2)puzzled adj.迷惑不解的(常用来修饰人)puzzling adj.令人迷惑不解的(常用来修饰事物)考点双向联动单元目标领航高效课时作业英文典例What me is why he left the country without telling anyone.令我百思不解的是他为什么悄悄地离开了这个国家。I have been this question for weeks.我对这个问题已冥思苦想了好几个星
13、期。Its quite us why he did that.他为何做这样的事，我们完全搞不懂。Her look on her face suggested she didnt understand what I said.她脸上迷惑的表情表明她不明白我说的话。puzzledpuzzlespuzzling over/abouta puzzle to考点双向联动单元目标领航高效课时作业3pull n&vt.拉(力)；拖；牵引力回归课本P30As the rocket rose into the air，we were pushed back into our seats because we w
14、ere trying to escape the pull of the earths gravity.随着火箭的升空，由于我们在努力挣脱地球的引力，我们被向后推在座位上。考点双向联动单元目标领航高效课时作业 归纳拓展pull away (汽车等)开走pull back 撤回pull down 拆毁；摧毁pull in (车辆)进站停靠，靠边停靠pull out 驶出；退出pull through 康复；痊愈考点双向联动单元目标领航高效课时作业英文典例He the chair away from the desk.他把椅子从桌边拖开。We waved as the train of the s
15、tation.火车驶出车站时我们挥手告别。The police car signalled to us to.警车发出信号，要我们驶向路边停靠。pull inpulledpulled out考点双向联动单元目标领航高效课时作业4in time 及时；终于；总有一天回归课本P26They were in time to produce carbon，nitrogen，water vapour and other gases，which were to make the earths atmosphere.最终产生了碳、氮气、水蒸气和其他多种气体，从而形成了地球的大气层。英文典例He manage
16、d to send the tourists to the airport.他设法把游客及时送到机场。If you keep on，you will succeed.如果坚持下去，你们迟早会成功的。in timein time考点双向联动单元目标领航高效课时作业 归纳拓展on time 准时；按时in no time 立即；马上at a time 一次；每次at one time 曾经；一度at the same time 同时take ones time 别着急；慢慢来考点双向联动单元目标领航高效课时作业，half the land on the earths surface was cov
17、ered by forest.曾经，地球表面有一半的土地为森林所覆盖。You must give your homework to the teacher.你必须准时把作业交给老师。on timeAt one time考点双向联动单元目标领航高效课时作业5in ones turn 轮到某人；接着回归课本P26Thus they have，in their turn，become the most important animals on the planet.于是，他们接着成为了这个行星上最重要的动物。英文典例When it is，I am too excited to speak.当轮到我时
18、，我激动得都说不出话来了。in my turn考点双向联动单元目标领航高效课时作业 归纳拓展in turn 依次，轮流；反之，反过来by turns 轮流；交替地take turns to do sth.轮流做某事It is ones turn to do sth.轮到某人做某事考点双向联动单元目标领航高效课时作业英文典例The customer praised the manager，who praised his staff.顾客表扬了经理，经理转而表扬了他的职员。All theories are derived from practice and serve practice.所有的理论
19、都来源于实践，并反过来为实践服务。Now to look after the children.现在轮到你照看孩子了。it is your turnin turnin turn考点双向联动单元目标领航高效课时作业6prevent.from.防止某事发生回归课本P26They are putting too much carbon dioxide into the atmosphere，which prevents heat from escaping from the earth into space.他们把过多的二氧化碳释放到大气层中，这使得地球上的热不能释放到太空中去。考点双向联动单元目标
20、领航高效课时作业 归纳拓展(1)prevent sb.fromdoing sth.stop sb.fromdoing sth.阻止，制止keep sb.from doing sth.(2)protect sb.from/against保护某人使免受考点双向联动单元目标领航高效课时作业英文典例Guards stood at the doors to anyone leaving.守卫站在门口阻止任何人离开。Once he has made up his mind，no one canhimcarrying out the plan.一旦他下定决心，谁也阻止不了他执行这个计划。His advice
21、 me making a serious mistake.他的忠告使我免于犯一个严重的错误。frompreventfrompreventfromkept考点双向联动单元目标领航高效课时作业7cheer up(使)高兴；使振奋；感到振奋回归课本P31I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.我立刻感到很高兴，由于失重我在太空舱里飘来飘去，我望着(身后的)地球越来越小，而(前
22、方的)月球越来越大。归纳拓展(1)cheer up高兴起来；振作精神cheer sb.on比赛中以喝彩声鼓励；为某人加油cheer the victory为胜利而欢呼(2)cheerful adj.快乐的，高兴的Cheers！用于祝酒干杯！考点双向联动单元目标领航高效课时作业英文典例Give Mary a call；she needs.给玛丽打个电话，她需要人安慰。The good news everybody who heard it.喜讯使每一个听到的人感到高兴。cheered(up)cheering up考点双向联动单元目标领航高效课时作业8depend on 取决于，依靠，依赖回归课本
23、P26So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.所以，在未来的数百万年中，生命是否能在地球上延续将取决于这个问题能否被解决。归纳拓展depend on itthat从句 确信depend on sb.to do sth./depend on sb.doing sth.依靠某人做某事That depends./It all depends.那得看情况。dependable adj.可靠的，可信赖
24、的考点双向联动单元目标领航高效课时作业undependable adj.不可靠的dependence n依赖，信任independence n独立get independence from.从获得独立dependent adj.依赖的，需要支持的independent adj.独立的be independent of.独立于之外考点双向联动单元目标领航高效课时作业1Many old people were still sleeping when the fire _ in a high-rise building in Shanghai，and then it spread quickly.A
25、broke out Bput outCcame out Dgot out解析：句意：上海的高层大楼起火时许多老人仍在睡觉，大火迅速蔓延开了。break out“发生，爆发”；put out“扑灭”；come out“出来”；got out“出去，逃脱，泄漏”。故A项符合句意。答案：A考点双向联动单元目标领航高效课时作业2Hanks decided to _ his father and now he has gone to live in a lonely island.Abreak away from Btake away fromCkeep away from Dgo away from解
26、析：break away from“脱离，摆脱”；take away from“移开，减少，降低”；keep away from“远离”；go away from“离开”。句意：汉克斯决定摆脱他父亲，现在他已经来到了一个荒岛上独自生活。答案：A考点双向联动单元目标领航高效课时作业3Scientists working on DNA have broken _ in a number of directions.Athrough BoutCoff Daway解析：句意：研究DNA的科学家们在许多方面都有重要的新发现。break through“突破”；break out“爆发”；break of
27、f“折断，突然停止”；break away“突然离开，逃脱”。故A项正确。答案：A考点双向联动单元目标领航高效课时作业4Shall we _ our discussion and have some tea or coffee，please?Abreak off Bbreak downCbreak into Dbreak out解析：break off“折断，中断，突然停止”，break off our discussion“中断我们的讨论”。break down“(机器等)出故障”；break into“闯入，破门而入”；break out“爆发”。B、C、D项均与句意不符。答案：A考点双向
28、联动单元目标领航高效课时作业5All the members of the company take it _ to do night duty.Ain turn Bby turnCon the turn Dout of turn解析：句意：这家公司的所有员工轮流值夜班。根据句意知应选A项，in turn意为“轮流，依次”。答案：A考点双向联动单元目标领航高效课时作业6The soldiers standing in line called out their names _.Aby turns Bin turnCout of turn Don the turn解析：by turns“交换，轮
29、流”；in turn“按顺序，依次”；out of turn“不按顺序”；on the turn“在转换时”。句意：站在队伍中的战士们依次报了自己的名字。答案：B考点双向联动单元目标领航高效课时作业7(2012年江苏卷，29)Thank God youre safe!I stepped back，just_to avoid the racing car.Ain time Bin caseCin need Din vain解析：考查短语辨析。句意：感谢上帝保佑你安然无恙！我向后退了一步，及时避过了飞驰而来的汽车。in time“及时”；in case“以防”；in need“需要”；in vai
30、n“徒劳”。根据句意可知答案为A。答案：A考点双向联动单元目标领航高效课时作业8Despite what Id been told about the native peoples attitude towards strangers，_ did I come across any rudeness.Ain no time Bat no timeCin any time Dat any time解析：在所给的四个选项中，只有B项at no time“绝不”表示否定意义，用于句首时，句子要形成部分倒装。in no time“立刻，马上，”相当于at once。答案：B考点双向联动单元目标领航高效
31、课时作业9Most school libraries allow students to borrow two books _.Aat timesBat a timeCin no time Dat one time解析：at one time“曾经，一度”；at times“有时，偶尔”；at a time“一次，同时”；in no time“立刻，马上”，相当于at once。句意：许多学校的图书馆允许学生一次借两本书。答案：B考点双向联动单元目标领航高效课时作业10My flight was delayed because of _ heavy rain.But you are just
32、in _ time for the discussion.Athe；a Ba；theC/；/Dthe；/解析：引起“我”的航班延误应该是特指的一场大雨，所以第一个空要用定冠词来限定；in time“及时，准时”，为固定短语。答案：D考点双向联动单元目标领航高效课时作业11_ the entrance exam is drawing near，some schools have abandoned the practice of doing morning exercises.AConsidering that BBecause ofCIn that DOn account of解析：句意：考虑
33、到快要到来的入学考试，一些学校放弃了做早操的惯例。considering that“考虑到，鉴于，因为”，后面接从句。because of是介词短语，后面不接句子；in that“因为”，要和上文连接，不用于句首；on account of“由于”，是介词短语，后面不接句子。答案：A考点双向联动单元目标领航高效课时作业12(2012年浙江金华质检)_ you are familiar with the authors ideas，try reading all the sections as quickly as you can.AEver since BNow thatCSo that DA
34、s long as解析：A项意为“自从以来”，引导时间状语从句；B项意为“既然”，引导原因状语从句；C项意为“为了”，引导目的状语从句，一般不置于句首；D项意为“只要”，引导条件状语从句。根据前后句的逻辑关系判断，应选B项，表示“既然你对作者的(写作)思想很熟悉”。答案：B考点双向联动单元目标领航高效课时作业13Special attention should be paid _ our earth from _.Ato prevent；being pollutedBto prevent；pollutingCto preventing；being pollutedDto preventing；
35、polluted解析：pay attention to中的to是介词，后接名词或动词-ing形式；prevent.from.中的from也是介词，其后也要接名词、代词或动词-ing形式；earth和pollute之间是被动关系，所以用动词-ing形式的被动结构。句意：我们应特别注意防止我们的地球被污染。答案：C考点双向联动单元目标领航高效课时作业14Yesterday she was stopped _ illness _ to work.Afor；from going Bby；goingCby；to go Dby；from going解析：句意：昨天，她因病未能去上班。stop用于被动语态中
36、，介词from不能省略。by表示原因。答案：D考点双向联动单元目标领航高效课时作业第二板块 句型巧析1教材原句This produced a chain reaction，which made it possible for life to develop.这就产生了一系列的反应，使得生命就有可能发展了。句法分析“makeit宾语补足语真正宾语(宾语从句或动词不定式等)”是固定句式。宾语补足语可以由形容词、名词、分词等充当。考点双向联动单元目标领航高效课时作业英文典例He his business to find out who was responsible.他非要弄清楚是谁的责任不可。I
37、remember I quite clear to you that I was not coming.我记得我向你清楚表示过我不会来。made itmade it考点双向联动单元目标领航高效课时作业 归纳拓展常用于此结构的动词还有think，feel，find，consider，take等。I think it interesting to study English.我认为学英语很有意思。I feel it my duty to help you.我觉得我有责任帮助你。We consider it too early to reach a conclusion.我们认为现在下结论还为时过早
38、。考点双向联动单元目标领航高效课时作业2教材原句But when I tried to step forward，I found I was carried twice as far as on the earth and fell over.而当我试着向前迈步时，我发觉我被送出很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。句法分析句中twice as far as.为倍数表达法之一。倍数的表达法主要有：(1)“A倍数as形容词或副词的原级asB”，表示“A是B的多少倍”。考点双向联动单元目标领航高效课时作业英文典例He has read books as I have.他读的书是我读过的
39、两倍。Our city has experienced rain this year as it did last year.我们城市今年的雨水是去年的两倍。(2011年陕西，17)The new stadium being built for the next As，an Games will be the present one.正在为下届亚运会而建设的新体育场将是目前这个体育场的三倍。three times as big astwice as manytwice as much考点双向联动单元目标领航高效课时作业(2)“A倍数形容词或副词的比较级thanB”，表示“A比B大(长、高、宽等
40、)多少倍”。There arebooks in our libraryin yours.我们图书馆里的书比你们图书馆里的书多五倍。(3)“A倍数the size/height/length/width，etc.ofB”，表示“A是B的多少倍”。My house is my parents.我的房子是我父母的两倍大。twice the size offive times morethan考点双向联动单元目标领航高效课时作业(4)A倍数what从句，表示“A是的多少倍”。The worlds population has grown to what it was in 1800.目前世界人口与18
41、00年相比已经增长到当时的六倍多。more than six times考点双向联动单元目标领航高效课时作业1(2012年安徽滁州联考)This research makes _ possible for doctors to target and destroy tumours without damaging the rest of the organ.Ait BthatCthey Done解析：动词make后常用it作形式宾语，possible为宾语补足语，后面的动词不定式to target and destroy tumours为真正宾语。答案：A考点双向联动单元目标领航高效课时作业2
42、He felt it a great honour _ to visit me when I was in the city.Ato have been taken Bto have takenChaving taken Dbeing taken解析：“feelit(形式宾语)adj./n.(宾语补足语)to do sth.(真正宾语)”是固定句型；take和he之间是被动关系，所以用动词不定式的被动形式。答案：A考点双向联动单元目标领航高效课时作业3I think _ wrong to take _ for granted that _ is easy to learn English we
43、ll.Athat；that；that Bit；it；thatCit；anything；it Dit；it；it解析：句意：我认为想当然地认为学好英语是很容易的观点是错误的。第一个空的it作形式宾语，其真正的宾语是to take _for.well；第二个空的it也为形式宾语，真正的宾语是that_ is easy.well；第三个空的it作形式主语，真正的主语为to learn English well。答案：D考点双向联动单元目标领航高效课时作业4Professor Lee is considering going to teach in our school，where he can ge
44、t paid _.Aas five times much Bas much five timesCmuch as five times Dfive times as much解析：考查倍数表达法。倍数as.as。该句省略了第二个as。答案：D考点双向联动单元目标领航高效课时作业5(2012年四川卷，2)New technologies have made _possible to turn out new products faster and at a lower cost.Athat BthisCone Dit解析：考查代词。分析句子结构得知宾语复合结构中动词不定式“to turn out
45、 new products faster and at a lower cost”为真正的宾语，设空处应是一个形式宾语，只能由it充当。故正确答案为D。答案：D考点双向联动单元目标领航高效课时作业6The price of the flat now is _ that last year.Aas twice high as Btwice more expensive thanCas high as twice Dtwice the amount of解析：考查倍数表达法“A倍数the amount(总额)of。”答案：D考点双向联动单元目标领航高效课时作业7Only by shouting at the top of his voice _.Awas he able to make himself hearBhe was able to make himself hearCwas he able to make himself heardDhe was able to make himself heard解析：make himself heard 让别人听到他说的。答案：C考点双向联动单元目标领航高效课时作业考点双向联动单元目标领航高效课时作业本部分内容讲解结束按ESC键退出全屏播放
