Unit4知识点人教版英语八年级下册

这是一份Unit4知识点人教版英语八年级下册，共7页。
U4 知识点用英语提建议的八个句型1. 用Shall we...?在表示建议或征求对方意见时，可用以Shall开头的一般疑问句。其肯定回答一般可用：All right, OK, Good idea等。2. 用Let's...?表示“让我们”（包括双方在内）做某事“这一建议时要用以Let's 开头的祈使句。而Let us在表示让我们做某事时，不包括对方在内。如：Let's go and see the pandas. Let us go, will you? 让我们去吧，好吗？3. 用Why not...?Why not...? 意思是：为什么不……？后接不带to的不定式（即动词原形）。Why not...? 是省略了主语的省略形式，完整句 Why don't you/they/we...?如：Why don't you go with me? Why don't you try again? = Why not try again?4. 用What about...?意为“……怎么”后可接名词、的代词和动名词。如：What about going out for a walk? I'm going to the park. What about you?5. 用had better 意为“最好”，“还是……好”，常用于口语，后接动词原形。如：You had better stay at home. You'd better go now.6. 用Don't...来表示建议，通常用于祈使句的否定形式中。如：Don't play in the street. Don't throw it like that.7. Would you like+短语？这个句型意思是“……怎么样？”后接sth. 或to do sth.如：Would you like another cup of tea? Would you like some colour pencils?8. Will you please+动词原形……？它的意思是“请你……好吗？”如：Will you please come tomorrow? Will you please pick it up?重点语法一、although引导的让步状语从句【典例探究】① Although he entered the contest just for fun, he won first prize.尽管他参加比赛只是为了好玩，但却赢得了头奖。② The boy worked out the problem although it was rather difficult.虽然问题相当难，但是男孩还是解答出了。【名师点拨】 although意思是“尽管，虽然”，用来引导让步状语从句，在一般情况下可以和though互换，但though比较口语化，而although较为正式，另外although的语气比though重。当although / though引导的从句放在句首时，主从句之间要用逗号隔开。注意：although和though都不能和but在一个句子里连用。语法学习 ★ although引导的让步状语从句 【典例探究】①Although I gave him some advice, he didn’t take them. 虽然我给了他一些建议,但他没有采纳。②Although it’s raining, they are still working in the field.虽然在下雨,但他们仍在地里干活。③Though he tried hard, he was not successful.虽然他尽力而为,但他没有成功。④Although / Though he was tired, he kept on working. 虽然他已经累了,但仍然继续工作。【名师点拨】 although的意思是"尽管,虽然",用来引导让步状语从句,在一般情况下可以和though互换,但though比较口语化,而although较为正式,另外although的语气比though重。当although / though引导的从句放在句首时,主从句之间要用逗号隔开。注意:although和though都不能和but在一个句子里连用。【互动平台】单项选择。1. ______ she is young, she knows quite a lot.A. When B. However C. Although D. Unless2. He went out without an overcoat ____ it was so cold.A. although B. so C. if D. For3. Please speak loudly ______ I can hear you clearly.A. although B. unless C. so that D. but Key:1-3 CAC★ so that引导的目的状语从句 【典例探究】①He got up early this morning so that he could catch the early bus.今天早上他起床早,以便能赶上早班车。②He got up so early this morning that he caught the early bus.今天早上他起得非常早,这样就赶上了早班车。【名师点拨】 so that用来引导目的状语从句,意思为"以便,为了",从句中常用can (could), will(would), may(might)等情态动词,如例①。so ... that ...用来引导结果状语从句,如例②。【互动平台】翻译下面的句子。1. 他跑得很快,我们跟不上他。______________________________2. 我们把灯打开,以便看看它是什么。______________________________ Key: 1. He ran so quickly that we couldn’t catch up with him. 2. We turned on the light so that we might see what it was.三、so that引导的目的状语从句【典例探究】① He got up early this morning so that he could catch the early bus.今天早上他起床早，以便能赶上早班车。② He got up so early this morning that he caught the early bus.今天早上他起得非常早，这样就赶上了早班车。【名师点拨】 so that用来引导目的状语从句，意思为“以便，为了”，从句中常用can (could), will(would), may(might)等情态动词，如句①。so ... that ...用来引导结果状语从句，如句②。12．UNICEF believes that all children should have clean water and food so that they can be healthy. 联合国儿童基金会认为，所有的孩子都应该食用干净的水和食物，这样才能保持健康。■ 此句中so that常用来引导目的状语从句，意思是“以便；为了”。如：The teacher must speak clearly so that the students can understand well.教师说话应该清楚，以便学生能听懂。■ 目的状语从句一般表示尚未完成的目的或意图，因此句中常用情态动词may / might, can / could, should, would等。如：She worked hard so that everything would be ready in time.她努力工作，为的是及时做好各项准备。They advertised the concert so that everyone should know about it.为了使每个人都知道这次音乐会，他们登了广告。【中考链接】1. —What do you think of her dress?— I think it still looks quite fashionable on her _____ it is a style of many years ago. (09年扬州)A. though B. or C. so D. because2. — Did you return Helen’s call?— I didn’t need to ____ I’ll see her tomorrow. (09年苏州)A. though B. unlessC. when D. because3. — I hear Jay Chou will come to Xiamen. — Really? ____ he comes, I will be very happy because I’m a big fan of him.（08年厦门）A. If B. Until C. Unless【互动平台】翻译下面的句子。1. 尽管他很忙，但是他还是经常帮我学英语。Although he is very busy, he often helps me learn English.2. 如果明天不下雨，我们就去划船。If it does rain tomorrow, we’ll go boating.3. 我们把灯打开，以便看看它是什么。We turned on the light so that we could see what it is.although, so that, until练习Ⅰ. 单项选择 1. I ________ home until I finish my homework. A. won’t go B. will go C. go D. went 2. Don’t get off _________ the bus stops. A. when B. after C. until D. as long as 3. It is easy to get the software we need _______the market is small. A. as if B. so that C. although D. until 4. The boy ________ to bed ________ his mother came in. A. went not; until B. didn’t go; after C. went; until D. didn’t go; until 5. I won’t believe you_______ I have seen it with my own eyes. A. if B. until C. after D. when 6. They didn’t start the work _________ their teacher came back. A. until B. while C. as soon as D. if 7. _______ there were only five soldiers left at the front, ________ they went on fighting. A. Because; so B. If; and C. Though; but D. Though; / 8. ______ she is very old, _______ she can still work eight hours a day. A. Because; so B. Though; but C. As; yet D. Though; yet 9. Please answer the question in a loud enough voice _______ all the class may hear. A. so that B. or C. in order to D. and 10. Lift it up ______I may see it. A. though B. so that C. as D. than 11. I hurried _______ I wouldn’t be late for class. A. so B. so that C. if D. unless 12. We should go by bus _______ we can get there earlier. A. as soon as B. where C. in order that D. as Ⅱ. 句型转换 The girl is young, but she can speak five languages. （同义句） _______ the girl is young, she can speak five languages. We went to the cinema early yesterday in order that we could find good seats. （同义句） We went to the cinema early yesterday _________ ________ we could find good seats. I’ll wait until he comes back. （同义句） I _________ __________ until he comes back.参考答案 Ⅰ. 1. A 解析：句意为“直到完成作业我才回家” ；not… until 意为“直到…才…”。 2. C 解析：not… until 意为“直到…才…” ，句意为“直到公共汽车停了再下车” 。 3. C 解析：前半句句意为“很容易得到我们需要的软件”，和“市场小”之间为转折关 系，故选C项。 4. D 解析：句意为“这男孩直到他妈妈进来才上床睡觉” 。 not… until 意为“直到… 才…”。 5. B 解析： not… until 意为 “直到…才…”；句意为“直到我亲眼见过它我才相信你”。 6. A 解析：not… until 意为“直到…才…”，句意为“直到他们的老师回来他们才开 始学习”。 7. D 解析：句意为“虽然在前线只剩了五名士兵，但他们继续战斗”。 8. D 解析：though 和 but 不能同时用在一个句子中；但是 though 可以和 yet 用在同一句 中；句意为“虽然她很老，但是她依然能一天工作八小时”。 9. A 解析：空后是一句子，故用连词连接，排除 C 项；根据前半句“请以足够大的声音 来回答这个问题”和“所有的同学都可以听到”可知表示“目的”，故选A项。 10. B 解析：句意为“把它举起来以便于我可以看到它”，故选B项。 11. B 解析：句意为“我匆忙是为了上课不迟到”。 12. C 解析：in order that 意为“目的是，为了”，引导目的状语从句。 Ⅱ. 1. Although 2. so that 3. won’t leave