八年级下英语语法unit8

1、Unit 8Why dont you get her a scarf?目标认知重点词汇与短语： personal, special, receive, gave, give away, pig, cost, rather than, take care of,how about, what about重点句型： Dogs are too difficult to take care of. 狗太难照料了。In the USA, some people ask their families and friends to give money to charity rather than buy them gifts. 在美国，一些人会要求家人和朋友向慈善机构捐款，而不是给他们买礼物。重点语法： 表示“提建议”的句子结构日常用语： How about sth. / doing sth.? （做）怎么样？What about sth. / doing sth.? （做）怎么样？How do you like sth.? 你认为怎么样？Why dont you buy/get.? 为什么不买？

2、Why not buy/get.? 为什么不买？Theyre too expensive/cheap/personal. 他们太贵/便宜/个性。Great! / Good idea! 好极了！/好主意！Its good for sb. to do sth. 做某事对某人来说有好处。It can make sb. 它会让人。精讲巧练1. Why dont you get her a scarf? 为什么你不给她买一条围巾呢？点拨这是给别人提建议，建议某人做什么事情的句型。如：Why dont you buy a book for your son? 给你儿子买本书怎么样？Why dont we come more often? 我们为什么不经常来这里呢? Why dont you do it this way? 为什么不用这种方法做呢?Why dont you have another try? 为什么不再试一次呢?这个句子还可以写成Why not do.?如：Why not get her a camera? 为什么不给她买个相机呢？这个句型还有发出礼貌地邀请的用法。如：Why don

3、t you have a drink of tea? 请喝茶。= Why not have a drink of tea?随时练【考例1】-Why not come and join us in the game? -_. But I must go to meet Mr. Smith at the airport.A. Id like to B. Lets go C. Yes，please D. Its a pleasure 【答案与解析】 A。本题考察的是对Why not do.句型回答，根据句意：-来参加我们的比赛，怎么样？ -我想去，但是我必须去机场接Smith先生。不难看出应该选择A。其他的选项不符合句意。【考例2】- _come and join us in the game? - Id like to. But I must go to meet Mr. Smith at the airport.A. Why not B. Why dont C. Why not to D. Why【答案与解析】A。 很显然这是对why not do和why dont you do sth

4、. 句型的考察，这里用排除法很容易就能排除B项，缺少主语you；排除C项，不需要加to；排除D项，缺少not；所以选A。 2. Thats not interesting enough. 那不够有趣。点拨enough作副词，修饰动词、形容词或其他副词时，应放在被修饰词的后面。enough还可以修饰名词，可以修饰形容词，副词。它修饰名词时，可置于名词前或名词后。例如：I dont know him well enough to ask him for help. 我和他不够熟悉，不好请他帮忙。This room is big enough for five of us to live in. 这房间给我们5个人住够大了。Do you have enough time? 你的时间够用吗？We have money enough to buy the house. 我们有足够的钱买这所房子。随时练【考例】-Does the child need any help?-No. She is _ to dress herself.A. enough old B. young enough C. o

5、ld enough(2010四川南充)【答案与解析】C。考查enough的用法。enough修饰动词、形容词或其他副词时，应放在被修饰词的后面。排除A。由语境可知空格所在处句意为“她足够大，能自己穿衣服了”。故选C。3. Dogs are too difficult to take care of. 狗太难照料了。点拨too+形容词或副词原形+to do sth. “太而不能”。如：He is too old to work. 他太老了，不能工作了。The box is too heavy for the little girl to carry.这箱子太重，小女孩搬不动。如在too前面或者后面有否定词not，则整个句子表达肯定。如：This question is not too difficult to answer. 这道题不太难回答。He is too clever not to see that. 他很聪明，不会不懂这一点。随时练【考例】Mr. Lee was _ tired to keep his eyes _.A. so，open B. so，closedC. too，c

6、losed D. too，open【答案与解析】D。根据题意应是太累了，睁不开眼睛，选B，C不合题意，选A不符合Too+形容词或副词原形+to do sth.意为“太-而不能-”的句型。4. How about a scarf? 一条围巾怎么样？ 点拨How/What about? 表示“怎么样/好吗？”这个句型是询问听话这一方对某事物的看法或者意见。about是个介词，它后面要接名词或者doing。如：How about his playing football? 他足球踢得怎么样？What about swimming with us? 和我们一起游泳怎么样？How about her English? 她的英语怎样？随时练【考例】-When shall we meet tomorrow?-_7:30?A. I think B. What about C. Is it D. Pardon【答案与解析】B。根据语境可知第二个人是征求对方意见。故选B。5. Sometimes I dont have enough time to spend with her.有时候，我没有足够的时间来

7、陪她。点拨spendon 在上花（时间或金钱）；如：He spends a lot of money on books. 他花许多钱买书。spend(in) doing sth. 花(时间或金钱等)做某事；如：The government will spend money looking after the patients. 政府要花钱去照料那些病人英语中表“花费”的词语：(l) spend的主语必须是“人”，宾语可以是钱、精力、时间等。如：He spends much money on books 他平时将很多钱用在买书上。He spent a lot of money（in）buying a new car 他花很多钱买了一辆新车。(2) cost的主语必须是“物”或“事”，表示“费用”、“耗费”，后接 life，money，health，time等，侧重于“花费”的代价。如：The book cost him one dollar 这本书用了他一美元。It costs you 12 pounds to go to London by ship 乘船到伦敦要用12英镑。(3) t

8、ake表示“花费”时，其主语一般是“一件事”，有时主语也可以是人，它说明事情完成“花费了”。如：It took me ten minutes to go to the post office到邮局用用了我十分钟时间。It takes a lot of money to buy a house as big as that买一座像那样的房子要花很多钱。(4) pay的基本意思是“支付”，作为及物动词，宾语可以是“人”、“钱”，如：He paid the taxi and hurried to the station他付了出租车的钱，急忙向车站赶去。They had to pay two hundred francs他得付两百法郎。Well pay you in a few days几天后我会给你钱。(5) pay for的宾语为“物”、“事”，for表示支付的原因。如：Youll have to pay me ten dollars a week for your meals你得每周付给我十美元饭钱。注 意：下面两句中 pay for的意义不同。Of course we have to pay for what we buy 当然我们买东西得付钱。Dont worry about money. Ill pay for you 别担心钱，我会替你付的。 随时练【考例1】The dictionary _ me $20. A. paidB. spentC. tookD. cost 【答案与解析】D。cost的主语必须是“物

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