新目标八年级上册英语UNIT2词汇语法讲解与练习.doc

1、词汇点睛基础词汇家务事_互联网_健康_百分之_至少_几乎从不_节目_或许_重点词汇讲解1. howoften是对动作发生的“次数”提问,询问的是频率“多久一次”回答可以是：Every day./ Once a week./Three times a week./ Often./ .eg：Howoftendoyouplaytennis?Howoftendoyousurftheinternet.2. hard / hardly . The ground is too to dig. I can understand them. Its raining ,the people can go outs

2、ide. hard作形容词，意为“困难的，艰苦的，硬的”；作副词，意为“努力地，猛烈地”。Hardly意为“几乎不”。3.maybe / may be .The baby is crying she is hungry.The woman a teacher .maybe 是副词，意为“大概， 可能，或许”，一般用于句首。May be是情态动词，意为“可能是.，也许是.，大概是.”.4.health 名词,健康。形容词是healthy, 健康的。通常构成词组：be healthy/keep healthy/keep in good health5.help with s.th= help (t

3、o )do s.th帮助做某事。6 exercise的用法。（1）作可数名词复数exercises。意为“运动、体操”。做早操 做眼睛保健操 （2）作不可数名词，意为“练习、习题”。eg：I have to . 我必须做大量练习 （3）作动词，意为“练习、运动”。 eg：How often do you exercise? 我天天锻炼 7. 注意sometimes与几个形似的词的区别。a.sometime是副词，意为“在某个时候”，“某时” b. sometimes:“有时候”,是副词。 c.some time是名词词组，意为“一段时间”，做时间状语用 d. some times是名词词组，意

4、为“几次，几倍”。eg：（1）I met him in the street last month.(2) Will you come again next week?(3) I will stay here for (4) I watch TV on weekends句型透视必背句一必背句1. What do you usually do on weekends? I always exercise.2.What do they do on weekends?They often help with housework.3.What does she do on weekends?She s

5、ometimes goes shopping.4.How often do you go to the movies ? Once a month. 5.How often does he watch TV?He hardly ever watches TV.6.Does he go shopping? No,he never goes shopping. 二例句解析1. What does he do on weekends?He usually watches TV.他通常在周末做什么？他通常看电视。句子是一般现在时，主语he是第三人称单数，借助助动词does。在答语中，谓语动词用单三式w

6、atches。2. How often do you go to the movies ? Once a month你多久去看一次电影，一月一次。howoften是对动作发生的“次数”提问,询问的是频率“多久一次”。 Once是“一次”，“两次”是twice,三次以上用“基数词+times”来表示。若只对次数提问，则用How many times“多少次”。3.Whats your favorite program?你最喜欢的节目是什么？Whats your favorite？=What do you like best?词汇点睛基础词汇虽然_ 例如_ 作者_ 杂志_多于_ 少于_ 然而_ 牙

7、科医生_重点词汇讲解1.percent百分之与不可数名词和单数名词连用时，动词一般用单数。Eg: Forty-five percent of the water is clean.与复数名词连用时，动词一般用复数。Eg: Forty-five percent of the students exercise four to six times a week.2. although是个连词，虽然，尽管,引导让步状语从句，与 though同义，但不能与 but 同时出现在一个复合句中，可与still, yet同用。3.however（1）做“不过，然而”，有转折的含义，相当于but.eg: How

8、ever,she has some bad habits,too.(2)是连接副词，“无论如何，不管怎样”，相当于no matter how,通常与一个形容词或副词搭配使用，后面接从句。Eg:I never win,however hard I try.我无论怎么努力也赢不了。句型透视必背句1.But my mother wants me to drink it.2.She says its good for my health 3.Forty-five percent exercise four to six times a week.4.She has a lot of good habi

9、ts.例句解析1.But my mother wants me to drink it.但是我的妈妈想让我喝它。Want=would like,其后可接名词，动词不定式等。（1） want to do sth.想要做某事。Eg:I want to buy some apples.（2） want sth. 想要某物。Eg:He wants a good job.（3） want sb. to do sth.想要某人做某事。Eg:His wife wants him to buy a car. 2.She says its good for my health 她说对我的健康有益。（1）be g

10、ood for“对有益”，反义词组是be bad for“对有害”。（2）be good to“对友好”，相当于be friendly to/ be kind to,后面一般跟表示人或者人格化的名词。Eg: She is kind/ friendly to us.(3) be good at“擅长，善于”，后面接名词，代词，或动名词。相当于do well in。3.Here are the results.这是结果。Here are表示“这儿有，这儿是”。此句是一个倒装句，here在这儿做表语。其中here后be的单复数形式要根据be后面名词的单复数来确定。Eg: Here is a lett

11、er for you.Eg: Here are some flowers for us.4. W e found that only fifteen percent of our students exercise every day.我们发现我们的学生仅仅百分之十五每天锻炼。此句是一个宾语从句。W e found是主句，only fifteen percent of our students exercise every day是宾语从句。percent百分之与不可数名词和单数名词连用时，动词一般用单数。与复数名词连用时，动词一般用复数。every day是副词短语，作状语，“每一天”，=e

12、ach day。Everyday是形容词，只做宾语，“日常的”，相当于daily。5.It is good to relax by using the Internet or watching game shows.通过使用网络或者观看游戏节目来放松是好的。此句型为Its+adj.+(for sb)+to do sth.在这个结构中，It是形式主语，真正的主语是to do sthby为介词，意为“用方法”、“以方式”，后接名词或动名词作方式状语。by还常与交通工具的名词连用构成介词短语。by还可与时间连用，意为“在之前”、“到为止”。eg：by making flashcards，by bus

13、，by ten oclock语法小结1. howoften是对动作发生的“次数”提问,询问的是频率“多久一次”回答可以是：Every day./ Once a week./Three times a week./ Often./ .eg：Howoftendoyouplaytennis?Howoftendoyousurftheinternet.2拓展疑问词how的用法（1）怎样，用什么手段，方法。Howdidhedoit?Idontknowhowtoswim.（2）情况如何（指身体健康状况）Howareyou? HowsitgoingwithTom?（3）howmany，howmuch表示“多少

14、”howmany后接可数名词复数，howmuch接不可数名词。Howmanytimesdoyougotothepark?Howmanyticketsdoweneed?How much water do we need every day?Howmucharethosepants?(4) How long. ? 询问的是时间长短“多长时间”回答可以是：About one hour./ Three hours. / Thirty minutes./.How long do you usually watch TV? 你通常看多长时间电视？重点词汇1.go to the movies 去看电影2.s

15、urf the internet 上网3.keep healthy=stay healthy 保持健康4.exercise=take(much)exercise=do sports 锻炼5.once a month 一月一次6.twice a week 一周两次 7.how often 多久一次 8.shop=go shopping=do some shopping 购物9.have dance and piano lessons 上舞蹈钢琴课10.do homework 做家庭作业 11.do housework 做家务事12.junk food 垃圾食物13.be good for 对什么

16、有益 14.be bad for 对什么有害15.want to do sth 想做某事 16.want sb to do sth 想某人做某事17.try to do sth 尽量做某事 18.some advice 一些建议 19.keep/be in good health 保持健康 20.drink milk 喝牛奶21.help sb.do sth 帮助某人做某事22.ninety percent of them 他们中的百分之九十23.a 16-year old high school student 一个16岁的高中学生24.have a lot of good habits 有大量的好习惯25.stay up late 熬夜晚的26.more than two hours 超过两个小时27.go to the dentist 去看牙医