高中英语外研版必修四教学案MODULE3SECTION3.docx

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1、Section HIGrammar 一 条件状语从句和让步状语从句语法原句感知If you say the word munication” , most people think of words and sentences.How can he help when they wont let him?You wont arrive there on time unless you take a plane.Even if you were busy, you should take care of your family.Clever as he is, he doesnt make gr

2、eat efforts in his lesson.However much I tried, I couldnt work the question out.He keeps taking physical training in winter no matter how cold it is.Although/Though she works very hard, yet (still) she makes very slow progress.自主探究L句中，黑体局部引导条件状语从句;句中，黑体局部引导让步状语从句。2 .由句可知，在条件状语从句中，主句用 将来时，从句用一般现在时代替一

3、般将来时。3 .句中although/though引导让步状语从句 不与but连用，但可以与yet或still连用。4 .由句可知，as引导让步状语从句且置 于句首时，从句用倒装语序。5 .句中,however与no matter how都引 导让步状语从句，两者可以换用。语法剧折语法点一条件状语从句1 .引导条件状语从句的常用引导词为:if, unless, as/so long as, once, in case, on condition that, supposing (that), providing (that), provided (that), given (that), wh

4、en (假如)等。在条件状语 从句中，用一般现在时代替一般将来时，一般过去时代替过去将来时。We will e over to see you on Wednesday if we have time.假如有空，我们星期三来看你。Unless you go at once, you will be late.假如你不立刻走，就会迟到。As long as she did this, all would be well.只要能做到这一点她就可以万事大吉。She will leave her key with her neighbor in case she locks herself out o

5、ne day.她要留一把钥匙给邻居，以防某天把自己锁在外面。Suppose/Supposing the plane doesn*t arrive on time, what shall I do?假定飞机不能准时到，我该怎么办？2 .真实条件句与非真实条件句假日前后就有可能展了而第件句叫真实条件句;假设的状况完全是一种假设或发生的可 能性不大的条件句那么叫非真实条件句，非真实条件句用虚拟语气。If you fail in the exam, you will let him down.(真实条件)假如你考试不及格，你会让他绝望的。If I were you, I would invite hi

6、m to the party.(非真实条件)假如我是你，我会邀请他参与聚会。3 .状语从句的省略在时间、条件、让步等状语从句中，当从句主语与主句主语全都或从句主语是it,从句 的谓语局部含有be动词时，可以将从句中的主语与be动词一起省略。He wont go there unless (he is) invited.他不会去那儿，除非得到邀请。Ill e early if (it is) possible.假如可能的话，我会早点儿来。4 .祈使句+ and/or+陈述句“祈使句+ and/or/orelse/otherwise+陈述句句型中，祈使句在意义上实际上相当于条 件状语从句。Give

7、 me all your money, and Fil let you go.=If you give me all your money, I will let you go.给我你全部的钱，我就放你走。5 . only if引导的从句置于主句之前时，主句要用倒装语序Only if you carry out the experiment under the desired conditions can you get the best result.只有你在需要的条件下做试验才能得到最好的结果。集中演练11 1.句型转换You will fail to arrive there in ti

8、me unless you start earlier.f You will fail to arrive there in time if you dont start earlier.In case of rain, wed better take an umbrella.-Incaseitrains, wed better take an umbrella.If you try some of this juice, youll like it.f Try some of this juice and you!ll like it.He wont say sorry unless he

9、is forced to.He wont say sony unless forced to.If you fail, what should you do?Suppose/Supposing you fail, what should you do?1 2.完成句子假如你今晚有空，我要去看你。If you are free this evening, I shall go to see you.假如我是一只鸟,我将在天空中自由的飞行。If I were a bird, I would fly freely in the sky.根而有必要的话，多带点钱。Please bring more m

10、oney if necessary.你只有知道这一切，才能得出结论。Only if you know all about it can you draw a conclusion.只要你容许来，我就等你来。As/So long as you promise to e, Fil wait for you until you e.语法点二让步状语从句让步状语从句通常由以下词或短语引导：though, although, even though, even if, as, while, whether .or (not)疑问词-ever, no matter + 疑问词等。1. though, al

11、though 和 as(l)though与although几乎完全相同，though比although通俗，不如although正式，两 者通常互换使用。though/although引导让步状语从句时，主句可用yet, nevertheless或still 引导，更加强调比照性，但不行用but。Although/Though he is young, (yet) he knows what is the right thing to do.尽管他小，他却知道应当做什么。(2)as和though引导的让步状语从句都可用倒装结构，但as必需用倒装结构。这种倒装 结构通常是把从句中的表语、状语或谓

12、语动词放在句首。作表语的名词前如有不定冠词a(n), 在倒装结构中，前面不能保存冠词。Teacher as/though he is, he is not capable of teaching all subjects.虽然他是个老师，但是他不能教全部的科目。Hard as he tried, he could not make great progress.尽管他努力尝试，但是他没有取得任何大的进步。Lose his money as he did, he didnt feel worried.尽管丢了钱，但他不感到担忧。2. even if 和 even thoughDo you kno

13、w what it will mean to them if you tell the truth, even if/though they already know?你知道假如你告知他们实情，即使他们已经知道，这对他们而言将意味着什么吗？3. while引导让步状语从句时，意为“尽管，虽然，相当于although。While I admit that there are problems, I don*t agree that they cannot be solved.尽管我成认有问题存在，但我不同意说这些问题不能解决。4. no matter who (what, when, which

14、, how, where 等)引导让步状语从句时，相当于 “who (what, when, which, how, where等)+-ever,表示“无论何人(什么，何时，哪个/些，怎样, 何地)等。如:No matter what/Whatever you say, I wont believe you.无论你说什么，我都不信任。He keeps taking physical training in winter no matter how/however cold it is.冬天不管有多冷，他始终坚持体育熬炼。5. . whether .or (not).Whether she es

15、 here or we go there, the topic of discussion will remain unchanged.不管是她来这儿还是我们去那儿，争论的话题都不会变。集中演练221 ,句型转换Whatever work we do, we should do our best.-Nomatterwhat work we do, we should do our best.Though he is a child, he knows a lot.f Childas/thoughheis, he knows a lot.No matter how hard he tried,

16、he failed his examination again and again.-Howeverhard he tried, he failed his examination again and again.Whoever telephones, just say Im out.-Nomatterwho telephones, just say Fm out.2-2.完成句子全部的国家都应公平，不管它们是否强大。All the nations should be equal, whether they are strong or not.虽然我们在那件事上意见不有我们仍旧是伴侣。Whil

17、e we dont agree on that, we continue to be friends.即使我再次失败，我也决不会放弃这个试验。Even if I fail again, I will not give up the experiment.无论发生什么，他都不会介意的口No matter what/Whatever happened, he would not mind.纵使你反对，我也要去。Object as/though you may, Ill go.语法做真题锁定考查方向做典题 提升语法水平铤接彩考选词填空1. (2015 江苏高考)It is so cold that

18、you cant go outside unless (when/if7once/unless) fully covered in thick clothes.解析：句意：外面太冷了，你不要出去，除非用厚衣服完全裹起来。unless ”除非， 符合句意。“unless fully covered”为连词+省略结构”，补充完整为“unless you are fully covered”。2. (2015d匕京高考)You won*t find paper cutting difficult as long as (as long as/even though/as if) you keep p

19、racticing it.解析：句意：只要你不断练习，你不会觉得剪纸很难。aslongas 只要，符合句意。3. (2014四川高考)Pll be out for some time. In case (As if/In case/Now that) anything important happens, call me up immediately.解析：句意：我要出工一下。万一有什么重要的事，立刻给我打 。in case “万一， 以防，引导条件状语从句，符合句意。4. (2014北京高考)Even though (When/In case/Even though/As) the fore

20、st park is far away, a lot of tourists visit it every year.解析：句意：尽管那个森林公园很远，但是还是有很多游客每年到这里巡游。even though ”尽管，虽然，引导让步状语从句，符合句意。5. . (2013辽宁高考)One can always manage to do more things, no matter how (how/what/when/where) full ones schedule is in life.解析：句意：一个人总是可以设法做更多的事，不管他生活中的日程支配得多满。空格 后的形容词full打算用副

21、词howo6. (2013四川高考)He is so busy. He cannot afford enough time with his son even if (as ifYeven if/before/because) he wants to.解析：句意：他很忙，即使想抽出足够的时间陪陪儿子也做不到。此题考查让步状语从 句。even if 即使”，符合句意。针对演神I .单句语法填空1. Whoever you are, I wont let you in.2. Youll have to attend the ceremony whether youre free or busy.3

22、. Even if you disagree with her, she will do (do) as she likes.4. Jone may phone tonight. I will not go out in case he phones (phone).5. . She said she would never e back unless the sun rose in the west.6. If invited (invite), she will not refuse to go to the party.II.句型转换1 . I wont forgive her unle

23、ss she admits her mistake first.f I wont forgive her ifshedoesntadmit her mistake first.2 . Although she is small, she knows she must earn her living.f Smallas/thoughsheis, she knows she must earn her living.3 . However strong you are, you can*t lift such a heavy stone.f Nomattcnhowitrongyouarc, you

24、 canft lift such a heavy stone.4 . In case of fire, break the glass.f Incasethereisme, break the glass.5 . If he is invited to the party, he will be very excited.f Suppose/Supposing/Providicg/Provided he is invited to the party, he will be very excited.in.完成句子6 .尽管她很恼人，但我还是喜爱她。I like her even though

25、 she can be annoying.7 .只要你接受我的建议，你就会取得巨大进步。Youll make great progress on condition that/so long as you follow my advice.8 .每当她向我问好时我都会感到大方。I feel shy whenever she says hello to me.9 .我不会去参与晚会，除非我受到邀请。I wont go to the party unless (Im) invited.10 .你最好把号码写下来以免忘了。Youd better write the telephone number

26、down in case you forget it.IV .短文改错As is well-known that birds are our friends. But the large number of birds have been killed for food. The other day I was walking in the woods while a shot was heard. Hearing the shot, the bird in the trees flew to all directions. A bird was injured badly and looke

27、d sadly. Finding the bird injured, so I decided to take it home. At home I take good care of it.When it recovered, I returned itself to the woods.I hope something should be done to prevent birds from killed.答案：第一句：As-It其次句：thea第三句： whilewhen第四句：birdf birds; to-in第五句：sadlyfsad第六句：去掉so第七句：taketook第八句：itself - it第九句：killed加being