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1、八年级下册U7-U10 语法专项【Unit 7】Whats the highest mountain in the world? 考点 形容词及副词比较级和最高级n 比较级u A+be+形容词比较级+than+B, 例：I am taller than my sister, but she is more active than me. “我比我的姐姐高，但是她比我更积极。”u A+实义动词+副词比较级+than+B, 例：Sam runs faster than Tom, but Tom gets up earlier than Sam. “Sam跑得比Tom快, 但是Tom起的比Sam早。
2、”u 原级比较：l 肯定形式：A+be/实义动词+as+形容词原级/副词原级+as+B, 意思是“A和B一样”, 例：Lucy studies as hard as Lily. “Lucy和Lily学习一样努力。”l 否定形式：A+be/实义动词+not+as/so+形容词原级/副词原级+as+B, 否定句中as可以替换成so, 意思是 “A不如B”。例：Betty doesnt sing as/so well as Kitty. “Betty没有Kitty唱得好。”u “the+比较级, the+比较级”, 意思是 “越就越”, 例：The more, the better. “越多越好。”
3、u “比较级+and+比较级”, 意思是 “越来越”。例：It is getting more and more popular. “它变得越来越受欢迎。”l 注意：more and more后如果接名词，其实此处是many和much的比较级，意思是 “越来越多的”, 例：More and more people come here. “越来越多的人来到这里。”u 选择疑问句中，含有比较级：特殊疑问词+be/实义动词+形容词/副词比较级, A or B?l 此类题型中，一定要看清楚比较范围的数量，两者为比较级，三者及以上使用最高级。u 注意：much, even, far, still, a
4、lot, a bit, a little用于修饰比较级。比较级后有of the two时，比较级前要加the。n 最高级u A+be/实义动词+形容词/副词最高级+in/of/among+范围l 注意：最高级必须有范围三者及以上之间u one of+the+形容词最高级+可数名词复数, 意为 “最之一”u the+序数词+形容词最高级+可数名词单数”, 意为 “第几最”u 比较级+than+any other+名词单数, 意为 “比其他任何一个更”, 使用比较级表达最高级。n 注意：定冠词the与形容词性物主代词、指示代词或名词所有格不能同时使用in不一定是同类，of同类n 倍数的表达u 基数
5、词+times+as+形容词原级+asu 基数词+times+比较级+thanu 倍数+the size / length / width / height / age等名词+of【专项练习】（ ）1.Shanghai is one of _ in the world.Yeah, its bigger than _ city in China.A.the biggest cities; anyB.the biggest city; any otherC.the biggest cities; any otherD.the biggest cities; any （ ）2.What do you
6、 think of the movie China Town?I love it. I think its one of _movies Ive ever seen.A.excitingB.more excitingC.most excitingD.the most exciting（ ）3.Is Tara _ than Tina?Yes, but Tara is _ in her class.A.taller, the heaviestB.tall, heavyC.taller, heavierD.the tallest, the heaviest（ ）4.We all hope to do
7、 _ work with _ people.A.less, lessB.less, fewerC.fewer, fewerD.fewer, less（ ）5.Oh, Lucy, you are getting _ and _.A.more and more beautiful, thinner and thinnerB.beautifuler and beautifuler, thinner and thinnerC.more and more beautiful, more and more thinD.beautifuler and beautifuler, more and more t
8、hin（ ）6.The Pacific Ocean is _ bigger than any other ocean.A.quiteB.a lotC.a fewD.very（ ）7.The weather in Changchun is much colder than _ in Shanghai.A.itB.thatC.the D.what（ ）8.John is _ of the two young man.A.tallerB.the tallerC.tallestD.the tallest（ ）9.The Sahara is about 210 _ the Taklamakan, the
9、 largest desert in China.A.times as large as B.times as larger asC.time as large asD.times larger（ ）10.This house is _ than that house.A.three times biggerB.three times as big asC.three time biggerD.three times as bigger as11.The Yellow River is _ _ (two) longest in China.12.The next question is muc
10、h _ _ (difficult) than this one.13.Of the two bags, I like _ _ (big) one.14.I want to become as _ (strong) as my brother.15.Jack runs as _ (quick) as Tom.【Unit 8-Unit 10】 考点1 现在完成时基础知识n 定义：时间截止到现在，动作发生在过去，强调过去的动作对现在的影响。n 结构：u 肯定句：主语+have/has+过去分词+(have可缩写为ve, has可缩写为s)u 否定句：主语+have/has+not+过去分词+u 疑问
11、句：Have/Has+主语+过去分词+？ Yes, 主语+have/has. No, 主语+havent/hasnt.n 现在完成时与一般过去时u 现在完成时强调过去发生或已经完成的对现在造成的影响或结果，强调的是现在的情况。u 现在完成时不能和表示过去时间点的时间状语连用，例如：yesterday, last week, ten years ago等u 一般过去时只表示过去发生的动作或状态，并不强调与现在的关系或影响。 考点2 have/has been to.和have/has gone to.n have/has been to “曾经去过某地”（已经回来了）n have/has gon
12、e to “去了某地”（去了还没回来） 考点3 ever与nevern ever意为 “曾经”, never意为 “从不，从来没有” 考点4 already与yetn already常用与肯定句中, “已经”, 通常用于句子中间或句末。n yet用于疑问句和否定句中, “还、尚、迄今、到那时”, 通常用于句末。 考点5 延续性动词与非延续性动词n for+一段时间及since+过去时间点或从句（从句的谓语动词用过去式）n 延续性动词与非延续性动词转化borrow/lendkeep buyhave finish/endbe over begin/startbe onarrive/come/go/
13、move/reach/get tobe in/at/here/there closebe closediebe dead leavebe away(from) go to schoolbe in school/be a student get upbe up fall asleepbe asleep fall illbe ill losebe lostbecomebe joinbe in/be a member of. return/come back/get backbe backget to knowknow receive/get a letterhave a letter catch/
14、get a coldhave a cold 考点6 常与现在完成时搭配的时间状语n already, yet, ever, just, never, before, so far, for+一段时间, since+过去的时间点, up to now等【专项练习】（ ）1.Have you been to Shanghai _? Yes,Ive been _ there twice. A.already, alreadyB.already, yetC.yet, alreadyD.yet, yet（ ）2.Shes _ here ever since she was ten.A.livedB.li
15、vingC.livedD.live（ ）3.Wheres Li Ming? He _ to the teachers office.A.has been toB.has goneC.has gone toD.have gone to（ ）4.Do you know Linda very well? Yes, She and I _ friends since we were very young. A.have made B.have become C.have been D.have turned（ ）5_ you ever _ to Changchun Ice and Snow Amuse
16、ment World?Yes, twice.A.Have, gone B.Have, been C.Do, go D.were, going（ ）6.Hurry up, Jenny. The movie _ for five minutes.A.has begunB.has been onC.has startedD.has on（ ）7.My grandpa _ for two years. I missed him so much.A.has diedB.has been deadC.diedD.has been died（ ）8.What a nice dress! How long _
17、 you _ it? Just 2 days.A.will, buy B. did, buy C. are, having D. have, had（ ）9.I remember that I_ yesterday evening at the park.A.have seenB.sawC.seeingD.have been seen（ ）10.I _ it yet.A.have been readB.have readingC.havent readD.read11.I have been to Hong Kong before. (改为否定句) I _ _ been to Hong Kon
18、g before.12.He hasnt come to school because he was ill. (就划线部分提问) _ _ he come to school?13.I bought a new bike just now. (用just改写) I _ just _ a new bike.14. He has never been there, _ _? (改成反意疑问句) 15. Miss Gao left an hour ago. (同义句转换)Miss Gao has _ _ _ for an hour.用never, ever, already, yet, for, s
19、ince填空16.We have been friends _ we were kids.17.Tina has _ finished her homework.18.Mrs.Miller has taught in this school _ ten years.19.Have you _ seen the film?No, I have _ seen it.”20.Has the bus left _?Yes, it has already left.”*答案*【Unit 7】1.C 2.D 3.C 4.B 5.A 6.B 7.B8.B 9.B 10.A 11.the second 12.more difficult 13.the bigger 14.strong 15.quickly【Unit8-Unit10】1. C 2.C 3.C 4.C 5.B 6.B 7.B 8.D 9.B 10.C 11.havent been 12.Why hasnt 13.have, had 14.has he15.has been away 16.since 17.already 18.for 19.ever, never 20.yet