人教版八年级英语上册unit 2知识点详解

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Unit2 How often do you exercise?
Section A 知识讲解
1exercise 的用法
1 exercise 可以作动词,意为锻炼
●I exercise every day. 我每天都锻炼。
2)可以作名词,意为“运动,锻炼”,为不可数名词 do exercise=take exercise 做锻炼,做运动
●My father always does exercise.我爸爸总是做运动。
3)意为“习题,体操”时为可数名词,常和动词 do 搭配使用,且作“体操”讲时多用复数形式。
do morning exercises 做早操,do eye exercises 做眼保健操
The teacher asked us to do math exercises every day. 老师告诉我们每天都要做数学练习题。
2. help with housework 帮助做家务
1 help with sth. 意为帮助做某事
2help sb. with sth. = help sb.(to) do sth. 帮助某人做某事
●I often help him ______ his English. = I often help him__________English. 我经常帮他学习英语。
3with one’s help=with the help of sb 在某人的帮助下
●I pass the exam__________my teacher’s help. 在老师的帮助下,我通过了考试。
=I can’t pass the exam__________my teacher’s help.
【拓展】
help oneself to… 请随便吃/···
●Please help yourself to some cakes. 请随便吃点蛋糕。
can’t help doing sth 情不自禁做某事
●I can’t help falling in love with that girl. 我情不自禁爱上那个女孩。
help out 帮助解决困难, 帮助对付
●He helped me out with my task.他帮我完成了任务。
注意:housework 意为家务劳动homework 为家庭作业,都是不可数名词
3. sometimes 有时
辨析:sometimes some times sometime some time
1sometimes 有时候。=at times= from time to time 也是有时的意思
2some times 几次。time 作可数名词时可作次数解;表示时间时是不可数名词
3sometime 某个时候。可指过去或将来的某个时候
4some time 一段时间。常与 for 连用。对它提问用 how long
口诀记忆:分开是“一段” ,相连是某时;分开 s是“几次”,相连“s”是有时。
练习:
We plan to stay in Hainan for . 我们打算在海南呆一段时间。
I am sure that we have met before. 我肯定我们之前见过几次了。
I have letters from him. 有时我会收到他的来信。
The foreign friends will come to our school next week. 外国朋友会在下个星期的某个时
候来我们学校。
4. hardly ever 几乎不
比较: hardhardly hardly ever
1hard 作形容词时,意为困难的;硬的;勤奋的;严厉的;苛刻的
hard 作副词时常用来表示程度,意为努力地;猛烈地;剧烈地 位于动词之后。
●This chair is too hard to sit on. 这把椅子太硬了而不能坐。
●They tried hard to succeed. 他们努力工作,以求得成功。
2hardly 副词,意为几乎不,表示否定意义,位于实义动词之前,系动词、助动词、或情态动词之后。
●He can hardly play football. 他几乎不会打篮球。
●There is hardly any coffee left. 几乎没有剩余的咖啡了
3hardly ever 是表频率的副词,意为几乎不;几乎没有,相当于 almost not, seldom
练一练:
There is ______ ______food left. 几乎没有食物剩下。
He ______ ______ . 他几乎不工作。
He ______ ______. 他工作努力。
It rained______this morning. 今天早上雨下得大。
拓展:
常见的频率副词有 alwaysusuallyoftensometimeshardly_evernever
与疑问词 how often 对应。表示
的频率由 always never 递减。在句中位于实意动词之前情态动词( can )、助动词(do )、连系动词
(be )之后。但 sometimes 也可在句首。
●Sometimes I go to school by bike. 有时候我骑自行车上学。
5. how often 多久一次
意为多久一次,常用于对时间频率提问。回答可用 once/twice/three times a day(一天一//三次)every
day(每天)sometimes(有时)never(从不)very often(经常)等。
词语 词义 用法 答语特征
how long 多久 询问时间多久 for/about+一段时间
how often 多久一次 询问动作的频率 often, twice a week
how soon 多快,过多久 询问时间多快 in+一段时间
how far 多远 询问距离多远 ten minutes’ walk/five kilometers
how many 多少 询问可数名词数量 数词+可数名词复数
how much
多少 询问不可数名词数量 数词+表示量的词+不可数名词
多少钱 询问价格 数词+
练一练:
1. - is it from the village to your farm?
-About 10 minutes’ walk.
2. - are you leaving for Beijing?
-In a few days.
3. - do you watch TV every day?
-Maybe 1 hour.
4. - do you help with housework?
-Every day.
5. - is the tree?
-About 300 years old.
6. - do you have dance and piano lessons?
-Maybe every two weeks.
7. - housework do you do every day?
-Just a little.
8. - programs did you watch?
-Three.
9. - are the apples?
-Ten yuan.
6. free 意为空闲的,有义词 busy be free 意为闲着,有,相当于 have time
●He is free now.=He ______ ______ now. 在有
拓展:free 免费, 自由的” be free to do sth. 自由地做某事
●The tickets are free. 免费的。
7quite full 很忙,相当.
1adj. full 的,充满 义词是 empty,意为
●The bus was full when they got there. 翻译________________________________________.
拓展:A be full of B. = A be fill with B; A 充满B
●The room is full of students. The bus is full of people.
练一练:
The hall is _______ people.
A. fill with B. full with C. filled of D. filled with
2full adj. “ 其反义词是 hungry,意为饥饿
●Are you hungry or full?你饿
●I can’t eat any moreI am quite full. 我不能吃了,我相当了。
人教版八年级英语上册unit 2知识点详解.doc

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作者:envi 分类:初中 价格:3知币 属性:11 页 大小:161KB 格式:DOC 时间:2025-04-02

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