1、八年级英语下册Unit 8 高频易错点讲解和练习一、already和yet区别两者都可以用于现在完成时already意为“已经”，用于肯定句中，强调某事已经发生;也可用于疑问句或否定句的句末，表示惊讶yet 意为“已经;还”,一般用于否定句和疑问句，用来谈论尚未发生但可能发生的事。如:Ive already finished my homework.我已经完成了我的家庭作业。-Have you finished your homework yet?-No, not yet.-你完成了你的家庭作业了吗?-不，还没有。Have you find your ruler yet?你还没有找到你的直尺吗
2、?【练习】用already，just， yet 或 never 填空。1.-Has Li Ming received the invitation_?-No, he hasnt got it_.But I know Mr.Zhao has_got it.2.-Have you read any books on Mars?-No, I have _read a single word about Mars.3.-Have you been to London?-No, we have _been there.4.When I arrived, he had only _left.5.The s
3、paceship hasnt sent any information back to us _.6.-Have you read Oliver Twist_? -Yes, Ive_read it three times.A.already; yet B.yet; already C.already; already D.yet; yet7.Were worried about Mike,because we havent received a letter from him _.A.already B.everC.yet D.never【答案】1.yet; yet ; already2.ne
4、ver3.never4.just5.yet6.B7.C二、the number of和a number of 的区别【中考重点短语】the number of意为“的数量”，后接可数名词复数，作主语时，谓语动词用单数形式，表语常是数词，也可接large，small作表语a number of 意为“许多的”，相当于many，修饰可数名词复数，作主语时，谓语动词用复数形式。number前可加small，large，great表示程度,即a large number of “大量的”， a small number of “少量的”【练习】1.我们学校的学生人数为2000。（汉译英）2.许多学生正
5、在操场上玩耍。 （汉译英）3.-How many boys are there in your class?-_them_twenty three.A.A number of; are B.The number of; are C.The number of; is D.A number of; is4._books on the shelf is about one thousand and _them are on sale.A.The number of;a number of B.The number of;the number of C.A number of;the number
6、of D.A number of; a number of5.A number of people_（be）watching football games.6.A large number of people _（play） basketball every day.7.The number of pages in this book _（be）65.【易错题】8.Look! There _ playing with the tourists on Yinhe Square.A.are a number of deerB.are a number of deersC.is the number
7、 of deerD.is the number of deers9.Nowadays,_peoplelikeHUAWEIphonesbetter,andabout_ ofthemareadults.A.thenumberof;four fifthsB.anumberof;four fifthC.anumberof;four fifthsD.thenumberof;four five【答案】1.The number of the students in our school is 2000.2.A number of students are playing on the playground.
8、3.C4.A5.are6.play7.is8.A解析：根据题意，本句是有许多鹿，许多是a number of。Deer的用法是单复数同形。中考时，有三个单复数同形的单词，必须要记住：鱼鹿羊（谐音于露洋，一个美丽的小女孩），fish，deer，sheep。9.C解析：第一空，句子里的动词是like，是原形，不是三单，因此用a number of。如果是thenumberof，谓语动词一般来说都应该是is，rises，increases这类词汇。第二空就是分数的用法：子基母序的规则，也可以把fifth看成五分之一，那么五分之四就是四个五分之一。因此fifth用复数。三、look like, be
9、like和feel like 的区别like最常用作【v.】和【prep】作动词，“喜欢”作介词，“像”，“类似”，“.怎么样”注意下面两个高频表达:How do you like your teacher?= What do you think of your teacher?你认为你的老师怎么样?What is the weather like in Chongqing?= How is the weather in Chongqing?重庆的天气怎么样?短语辨析:look like “看上去像”，指外观上像。be like “像一样”，指品德、相貌等，更多侧重表示人的个性特征。feel
10、like意为“想要(做某事)”，feel like doing sth.=want to do sth., 其后接名词或动名词，不能接不定式。feel like 还表示 “摸起来好像”， 因为feel是系动词， 表示“摸起来”，“感觉到”如:She looks like her mother.她看起来像她妈妈。 -What is he like?他是个什么样的人?-He is kind and warm-hearted.他善良又热心。I feel like a cup of tea.我想喝杯茶。Do you feel like joining us?你想要加入我们吗？I like this s
11、carf.It feels like silk.喜欢这条围巾。 它摸起来像丝绸。四、think相关短语think about 意为“想，考虑”，指考虑解决某一问题,“考虑”的宾语可由名词、代词、动名词、疑问词引导的不定式或宾语从句充当。think of 意为“思考，想起，考虑”。表示“考虑”的含义时，可与think about互换，后接名词、代词、v.-ing形式或疑问词引导的从句。think over 意为“仔细考虑”，其中over为副词，如宾语为名词，位于over前后均可，如果是代词，必须置于think与over 之间。【练习】1.我正在考虑一个问题。（汉译英）2.He always th
12、inks of others more than himself.（英译汉）3.在你做这件事之前，你最好先好好考虑一下。（汉译英）4.This is my idea.I hope you can _ it.A.Think ofB.Think over C.Think aboutD.Think up5.选词填空:think of，think about 和 think over -What do you _our school?-Its very good.It is clean and beautiful.-Would you like to go abroad to study?-Let m
13、e_it_.【答案】1.Im thinking about a problem.2.他总是为别人考虑得多，为自己考虑得少。3.Youd better think it over before you do it.4.C5.think of think; over五、leave相关短语leave “离开，出发”，其后接表示地点的名词，构成“leave+地点名词”短语。leave for 后接表示地点名词表示“动身去某地”。leave.for.表示“离开某地去另一地”， 即leave A for B。leave from “从离开”，from后的地点是离开的地方。如:When did you le
14、ave London?你们是什么时候离开伦敦的? We are leaving for Rome next week.我们下周将要去罗马。 We will leave Beijing for Shanghai.我们将要离开北京去上海。 Im leaving from school.我要从学校离开。【练习】1.My father _ the city of New York three days ago.A.leaveB.left toC.left offD.left for用leave和leave for 的适当形式填空。2.Remember to close the door when yo
15、u _ the house.3.He_ Beijing this morning, and will arrive there in an hour.【易错题】4.My father _ the USA in two weeks.A.is leave forB.leavesC.is leaving forD.left for【答案】1.D2.leave3.left for4.C解析: 根据时间状语in two weeks“两周后”， 可知是将来时态，动作还没有发生。 选项A, 形式错误; 选项B, 一般现在时; 选项C, 现在进行时， 注意，现在进行时可以表将来; 选项D, 一般过去时。 故选
16、C。补充leave其他短语:leave for 离开前往 leave out 删去,遗漏leave behind 遗留,忘记拿走 leave to 留给,遗嘱赠予 leave over 遗留,剩下,延期【练习】1.“Whose name has been_?”demanded the teacher.2.When he died，he_ all his property _his niece.3.He suddenly realized that he had_his umbrella_.4.I said goodbye to my best friend John, he would_ London the next day.5.Those are questions_by history.【答案】1.left out 2.left; to 3.left;behind4.leave for 5.left over5
