八年级上册Unit2课文重难点讲解.doc

个人收集整理 勿做商业用途
Unit2 How often do you exercise？
【教师寄语】Failure is the mother of success. — Thomas Paine 失败乃成功之母
Section A
1. How often do you exercise？ 你多久做一次运动?
【解析1】how often/ how long / how far/ how soon辨析
how often
多久一次
对次数和频率提问,如：always, usually， often. hardly ever， never, sometimes， everyday (week， month， year…)，once a week,
twice a month 等表示频度的副词或短语提问
how long
多长时间
① 对“for+一段时间”或” ，
②“since+时间段+ago”等时间短语提问
how far
多远
对距离提问
how soon
多久
对“in+一段时间“提问
【2013广东4】— ________ is it from the village to your farm?
—About 10 minutes’ walk.
A。 How often B. How soon C How long D。 How far
【2014江苏盐城1】－ _______does Nancy help the old lady with her housework？
－ About twice a week。
A. How often B。 How long C。 How much D. How soon
【2014山东泰安】26。— ____ will your father come back from Beijing?—In two days.
A。How often B。How long C。How far D.How soon
【2014山东菏泽】— Look at the flowers I gave you last month . They are dying！ ___do you water them？ — Sorry, I forgot to water them.
A.How long B. How often C。How soon D.How much
【2014浙江湖州】19. -Excuse me， Sir 。 ____ is it from here to the nearest shopping mall？
— well, only about five minutes’ walk。
A。How often B.How long C.How far D.How soon
【解析2】exercise v 锻炼 =do sports= play sports 【短语】take /have/do exercise 做运动
do morning exercise 做早操 do eye exercise 做眼保健操
（ ） The girl never exercises. She is lazy and unhealthy。
A. does housework B. does her homework C. does any sport D。 does anything
【2012山东】I hardly take ____, so the doctor asks me to do some morning ____.
A. exercise； exercise B。 exercises； exercise
C。 exercises; exercises D. exercise； exercises
2. What do you usually do on weekends？ 你在周末做什么？
【解析1】频度副词

意思
频度
always
总是，一直，
100％
usually
通常，经常
90%
often
常常,经常
70%
sometimes = at times
有时，不时
40％
hardly ever= almost not
几乎从不
5%
never
从不,决不
0%
【注】：频度副词表示多长时间做某事一次,
用在实义动词之前，系动词、助动词、情态动词之后。
We often clean the classroom every day.
【2014四川成都】37．Li Ke ___________runs in the morning, for he wants to be healthy。
A．never 　 B．often　 C．hardly
【2014浙江温州】—How often do you go skating? —________.I can’t skate at all.
A。Always B.Sometimes C.Seldom D。Never
【拓展】some time /sometime/some times/sometimes
【口诀】：分开是一段,合起是某时； 分开s 是倍次，合起s是某时
(1）some time一段时间，做时间状语
It takes sb some time to do sth 做某事花费某人多长时间
(2) sometime adv 在某个时候，
（ ）I hope to visit the USA _____ in the future.
A. sometimes B。 some times C。 sometime D. some time
(3） some times 名词词组，“几次，几倍”

(4) sometimes=at times 有时 （一般现在时的标志词）
【2014四川绵阳】17－______ do you write an English article for our school newspaper?
—Sometimes。
A. How long B. How often C. How much D. How far
【2014江西中考】My sister ____ goes to bed early because she needs a lot of sleep every day.
   A. always     B。 sometimes    C。 hardly    D. never
【解析2】weekend/weekday辨析
单词
意思
范围
weekend
周末
周六、周日
weedday
工作日
周一至周五
【解析】on weekends = on Saturday and Sunday 在周末
on weekdays= from Monday to Friday 在工作日
【2014云南中考】27。 My favorite ___ is summer。 I can swim with my friends.
A.month B。day C.season D.weekend
3。 Hardly ever 几乎从不
【解析】hard （1)adv 努力地,猛烈地 work hard 努力工作 study hard 努力学习
(2） adj。 困难的，艰难的 =difficult
◆It’s hard/difficult for sb to do sth 做某事对某人来说是困难的
It's hard for us ____________(finish） the work without other’s help.
拓展】hardly adv “几乎不，从来不” ,表否定意义,常与can ,any ，ever 连用。
I can hardly believe it.
（ ） It’s raining ____ .People can _____ go out。
A. hard; hardly B. hardly; hard C。 hard ； hard D。 hardly ; hardly
【注】 形容雨雪下的大用hard/heavy
【2014江苏盐城】5。 It was raining _______when my sister and I got to the museum。
A。 badly B. softly C. hardly D。 heavily
4. Twice a week 一周两次
【拓展】once = one time一次 twice= two times 两次
【注】：三次或三次以上用：“基数词+times”
three times 三次 four times 四次 three or four times 三到四次
I chat with my friends online________________（一两次) a week.
【2014云南中考】66。It is a good habit to brush your teeth at least___ a day。（two）
5。 I go to the movies maybe once a month。我大慨一个月去看一次电影。
【解析1】go to the movies = go to the cinema = see the film 去看电影
【解析2】maybe/may be辨析:
（1） maybe =perhaps adv 也许，可能，表示推测，通常用于句首，在句中作状语。
( ） ______ Li Hua wants to be an astronaut like Yang Liwei.
A。 May be B。 May C。 Also D。 Maybe
（2）may be 是“情态动词may +动词原形be”, 或许，可能是，也表示推测，在句中作谓语。可以和maybe 互换。
Tom’s pen may be in his backpack. =Maybe Tom’s pen is in his backpack
6.He plays at least twice a week.他至少一周踢两次（足球）
【解析】least adv . 最小，最少 at least至少；不少于
【记】l +east （东方）→least
7. use the Internet 上网
8。-What’s your favorite program? 你最喜欢的节目是什么？—Animal World。<动物世界
【解析】favorite adj. 最喜欢的 = like …..best
one’s favorite + 名词 某人最喜欢的 _____________ (I) favorite subject is English.
【2014重庆中考B卷】23. -—— What’s your favorite ______, Bob? --- Cats. They’re so lovely.
A。 plant B. job C。 sport D。 animal
9. I watch TV every day 我每天都看电视
【解析】 (1） every day 每天= each day 做状语，放在句末，对其提问用 how often
He exercises every day。
（2) everyday = daily adj. 每天的 ,作定语,修饰名词,放在名词之前
everyday English 日常英语
as for 至于，关于，后接名词或代词，多用于句首,表示强调。
( ) ________ English， I think it’s my favorite. A。 As for B。 But for C. So as D. As well
10. They often help with housework. 他们经常帮忙做家务。
【解析】help v 帮助→helpful adj 有帮助的
help sb。 with sth
在某方面帮助某人
I often help my mother with housework on weekends
help（to) do sth
帮助某人做某事
She was coming to help clean the machine
help sb. （to) do sth
帮某人做某事
Mr. Wang helped me (to ） repair my bike.
① My mom helps me______ _（do） my homework。=My mom helps me with my homework。
【2014重庆中考B卷】22。 Help ____ to some fish, Jeff. A. you B. yourselves C. yourself
11。 Are you free next week ？ 下周有空吗？
【解析】free ①adj。 空闲的 be free = have time 有时间 ② adj。 自由的，免费的
be free to do sth 随心所欲的做某事
12. Next week is quite full for me， Jack。 杰克，下周我很忙.
【解析】 full adj. 忙的 = busy
adj。 满的；充满的 be full of = be filled with 充满
This shelf is full of / filled with books。

13。 —What kind of dance are you learning ? 你在学什么舞?
— Swing dance 摇摆舞
【解析】kind （1) n 种类 kind of +adj.有点，有几分,kind of cold 有点冷
a kind of 一种的,某种的 all kinds of 各种各样的 different kinds of 不同种类的
What kind of…?哪种…？
【2014湖北黄冈】31。 — What______ bowl of noodles would you like， small, medium or large?
- A large bowl of beef noodles， please。 A。 color B。 price C。 size D。 kind
(2) adj. 友好的 be kind to sb。 =be friendly to sb. 对某人友好
【2014贵州安顺】13。 It's kind _ you _ help me with my English。
A。 of; to B。 for; to C。 of; for D。 to; to
【解析2】swing n 秋千 There is a kid playing on the swing. v. 摆动,荡秋千
swing dance 摇摆舞 【记】s + wing（翅膀） →swing
14。 On Wednesday and Friday。 在周三和周五 【解析】介词at/ in /on /for表示时间：
1）.表示某一具体时间点，某一时刻/ 年龄
at six o’clock at noon at that time at the moment at the age of at night
2)in表示时间段，一天的三个时间段以及月份,年,季节,世纪，人生的某个时期(某人几十岁时)
In the morning/afternoon /evening in spring /in 2007/in March
in the twenty-first century in his fifties
3)on表示星期几/某一具体的日子/具体某天的上午/下午/晚上,表示一天中的三个时间段名词前有修饰语或后有修饰语时.
On Monday on New Year's Day on Sunday morning on a rainy night
【2014山东滨州】23。A ship from South Korea sank into the sea ____ April 16，2014
A.in B。on C.at D。for

Section B ＆ Self Check
1. How often do you eat junk food? 你多久吃一次垃圾食品?
【解析】 junk food 垃圾食品 green food 绿色食品
natural food 天然食品 healthy food 健康食品
2。She says it’s good for my health。 她说这对我的健康有好处。
【解析1】be good for/ be good at/ be good to 辨析：
be good for
对……有好处,对….。有益（反）be bad for 对……有害
be good at = do well in +n/doing
擅长于做某事
be friendly to=be kind to
对…. 友好
①My brother________________(擅长于) baseball。
（ ) ② It's not good ______ your health to play computer games so much。A. with B .in C。 for
( ）③ Running is good ___ your health。 A。 at B. to C。 for D. with
【2014江苏淮安2】9. Andy, you’d better not eat meat only。 You should know milk and fruit _______ good for you。 A. is B. are C。 was D。 were.
【解析2】health n 健康→healthy adj 健康的 （反)unhealthy →healthily adv 健康地
【记】 You should eat healthy food to keep in good health.
◆ keep healthy = keep fit = stay healthy=keep in good health 保持健康
【拓展】n+y=adj. windy , cloudy, sunny, funny , snowy.
① They eat very ____________(health）。 ②Mike is good for our ____________(health).
② I think eating more _____ food can help us keep _____ 。
【2014云南昆明】37。 --—- Although Ms Zhou is an old lady, she is always in the pink。
—-—- Yes. Because she exercises every day and eats a balanced diet.
A。 healthy B. lucky C。 beautiful D. creative
3。 How many hours do you sleep every night? 你每天晚上睡几个小时？
【解析】 ①how many 多少，后跟名词复数，用于对可数名词的数量提问。
（ ）——How many ____ are there in your basket, Jeff？ --Only three.
A. rice B。 orange C. eggs D. Fruit
【2014北京中考】25。 —________people are there in your family?-Three.
A. How often B。 How long C. How many D。 How much
②how much 多少，后接不可数名词，可对不可数名词的数量或价格提问。
How much meat do you want？
How much is the bike？ = What’s the price of the bike？
4。 Although many students like to watch sports。 虽然许多学生喜欢看体育节目
【解析】 although=though conj 虽然,即使;不能与but 连用，引导让步状语从句
【解析】through + 手段、 媒介 “以，凭借,穿过” by + ving/ 工具名词
【辨析】through/across
（1)through “从……中经过” ，指从物体的空间内部穿过，如门、窗、洞、森林等
(2) across “横越，穿过” , 指从表面走过或从一边到另一边.
（ ） ①_____ he isn't rich enough, he often gives away money to some poor children。
A. Though B。 When C. Because D. If
( ） ②____ he is very tried， he still tries ______。 A。 Because ； work B. Because； to work
C。 Although； working D. Although ;to work
【2012江苏】The moonlight is shining in ___ the window. Everything in the room looks so
nice。 A. over B. across C. through D。 past
5。Exercise such as playing sports is fun, and you can spend time with your friends and family
as you play together。体育运动之类的锻炼很有趣，通过在一起活动,你可以和你的朋友、
家人一起度过一段时光。
【解析1】such as/ for example辨析：
（1)such as “例如，像……一样” 常常列举同类人或物中的几个例子，放在被列举的事物与前面的名词之间。 I like all kinds of sports such as running and swimming。
（2）for example 一般只列举同类人或物中的“一个”，做插入语，位于句首、句中或句末.
【解析2 spend /pay /cost/ take 花费
动词
主语
宾语
句型结构
spend
人
时间或金钱
sb。 spend …on sth/ in doing sth
pay
人
金钱
pay…。 for
cost
物
金钱
sth cost sb。 some money
take
it
时间
It takes sb. .. to do sth
【2012湖南永州】 My father ____ one hundred thousand yuan on his new car.
A. spent B. cost C. paid
【2014贵州黔南州】5。 We should remember to spend some time _ your loved ones,
because they’re not going to be around forever.
A. from B. with C。 in D。 on
【2014四川乐山】78. Jim wants to buy a new iPhone. It will ______花费) him more than
5000 yuan。
6. remember, “ old habits die hard” 记住：“旧习难除”
【解析】 remember v 记住,记得 remember to do sth记得去做某事(事情还未做)
remember doing sth 记得做过某事 （事情已做）
【2014成都中考】38．Kate, remember ___________for the sick to cheer them up。
A．to sing　 B．not to sing 　 C．singing
【解析2】die v.死 → dead adj。死的 → death n。死亡
→died → died → dying
【记】My dog died last year and his death made me sad.
7。 …watches TV for more than two hours a day；….
【解析】more than “不止……, 超过" = over （反义词)less than 少于
more than + 可数名词复数,做主语，谓语动词用复数
【2012广西】— How many new desks and chairs are there in your school this year？
- There are over 3,000. Each of us has one。
A。 less than B. most C. more than D。 as many as
8. The answer to our questions about watching television were also interesting。
关于我们看电视的问题的答案也很有趣。
【解析】the answer to the question 问题的答案 【拓展】the key to … (……的钥匙）
The way to…。 （去……的路） The ticket to … （ ……的票）。
【新疆中考】 It’s very nice of you to help find the key ____ the door。
A。 of B。 for C。 to D. on
【2012江苏】On the way ___ the mountain village, we found the local house different from
ours。 A。 to B。 by C。 at D. on
9。 It is good to relax by using the Internet or watching game shows.
通过使用互联网或观看游戏节目来放松是很好的。
【解析1】It’s + adj。(easy,difficult，important，necessary) +（for sb。) to do sth。
It's +adj（ kind， honest, friendly, )+（of sb) to do sth。
【2012山东东营】It’s very convenient(方便的） ___ us to buy train tickets now because we can buy them either from the station or on the Internet. A. to B。 of C. by D。 for
10. Last month we asked our students about their free time activities.
上个月我们问了我们的学生们他们的言语时间的活动。
【解析1 】ask sb about sth 向某人询问有关……的情况
ask sb to do sth请/要某人去做某事（否定形式)ask sb。 not to do sth
ask sb. for sth 向某人要某物
【解析2】active adj。 活跃的 → activity n 活动 My friend is _______________（active).
15。 Jane has a lot of good habits。 简有很多好习惯
【解析】a lot of =lots of 许多，大量 a lot of +可数名词复数=many
a lot of +不可数名词= mu ch ( ) ① There is a lot of snow in the north of China in winter。
（ ) ②The students have lots of homework to do every day. A。 many B. much C. a lot
11。 What does the writer think is the best way to relax？
作者认为最好的放松方式是什么？
【解析】 the best way to do sth 做某事最好的方法
( ） What's the best way ___________（keep) healthy?

【拓展】 lose one’s way 迷路 make one's way 去，前进on the way to … 在去……的路上 by the way 顺便问一下 in the way 在某种程度上
12。 less adj。 更少的 (修饰不可数名词） little →（比较级）less →（最高级) least You should eat less meat。
13. You have to learn more about healthy habits. 你必须学习更多关于健康习惯的东西
【解析】must/have to 必须 （1)must 强调主观看法,无时态变化(情态动词， 后跟动词原形) I must do my homework before I go out。
【 拓展】must 提问的句子，肯定回答用must ， 否定回答用needn’t
【2014山东滨州】28.— Must we take out the trash now?
— __________. You can do it after class。
A. Yes , you must B. No ，you can’t C. Yes, you may D。 No, you needn’t
（2） have to 强调客观需要,有时态和人称的变化,第三人称单数形式为has to ，过去式为had to I have to go to a meeting. （ ) We must ____ hard every week.
A。 study B。 studying C。 Studies
【2014云南中考】34。We ___ use mobile phones when the plane takes off。
A。 may not B. shouldn’t C。 needn’t D. mustn't
【2014山东德州】31— Lingling, can I use your e-dictionary?
-Sure , but you _____ return it after class。 A.must B。can C。may D。would
14。【解析】mind n 头脑；心智 v 介意；担心； 关心
【短语】 make up one’s mind 下决心 change one’s mind 改变主意 never mind 不必担心/ 没关系 keep in one's mind 记住
【句型】 - Do/ Would you mind (one’s） doing …? 你介意（某人）做某事吗？
- Not at all/ Of course not / Certainly not （表同意)
— You’d better not/ I’m afraid I do （表示不同意)

【单元短语熟记】：

help with housework________________
go shopping ________________
on weekends ________________
how often ____________