Unit2+重点知识课件 人教版八年级英语上册.pptx

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1、Unit2 How often do you exercise?Whatdoyoudoonweekends?1.1.do do homeworkhomework 2.2.exercise exercise 3.3.go go to the movies to the movies 4.4.play play football football 5.5.watch watch TV TV 6.read books 6.read books Have a talkJim/once a weekTony/usuallyBob/every day Peter/never Li Ming twice a

2、 week Li Leihardly everalwaysusuallyoftensometimesneverhardlyever总是通常常常有时几乎不从不help with houseworkreadwatchTVgoshoppinggofishingexerciseWhatdoyouusuallydoonweekends?Ialways/often/usually/sometimes.dohomeworkplayfootballwatchTVdosomereadingdoeshomework.Whatdoessheusuallydoonweekends?doessomereading.Sh

3、ealways/often/usually/sometimes.goesshoppingexercises.What_heusuallydoonweekends?playsfootball.doesHealways/often/usually/sometimes.watches TVwatchamovieWhat_theyusuallydoonweekends?goshopping.doTheyalways/often/usually/sometimes.seeafilmgotothemoviesgotothecinema100%alwaysusually oftensometimeshard

4、ly ever 80%never0%60%20%5%提示：频率副词在句中的位置是：实义动词之前，be 动词，助动词或情态动词之后。I usually play the guitar on weekends.I sometimes play the guitar on weekends.I always play the guitar on weekends.比一比，看谁说得又快又好？100%80%20%I sometimes exercise on weekends.I hardly ever exercise on weekends.I never exercise on weekends.

5、20%0%5%1.How often do you exercise?你多久锻炼一次？高频高频&重点重点：how often how often 多久一次多久一次how often 常引导特殊疑问句，用来提问频率。答语通常是频度副词或表示频率的词组。（always,usually,sometimes,never,hardly ever,every day,once a week,three times a day等等）How often do they read English books?他们多久读一次英文书？Every day.每天。How often does your father p

6、lay basketball?你爸爸多久打一次篮球？Once a week.一周一次。短语 含义 用法 答语how far多远 提问距离10minuteswalk表示距离的词或短语how long多长1.提问时间2.提问物体长度1.for+时间段2.表示长度的how soon多久 提问时间in+时间段how much多少钱多少1.提问价格,2.对不可数多少名词的数量提问1.表示价格的词或短语2.不可数名词的词或短语how many多少对可数名词的数量提问可数名词的词或短语由由howhow构成的其他疑问短语的用法构成的其他疑问短语的用法典例1._does your father go to th

7、e fitness center?He exercises there twice a week.A.How soon B.How often C.How long2._ will you fly to Beijing?In two days.A.How long B.How often C.How soon2.I hardly ever watch TV.我几乎不看电视。易混易混辨析：辨析：hardly&hardhardly&hard hardly副词 意为“几乎不”，表示否定意义hard副词 意为“努力地；猛烈地”形容词 意为“困难的；辛苦的；坚硬的【拓展】hardly ever 几乎从不

8、，表示一种否定的频度，相当于 almost never 等。It hardly ever snows here.这儿几乎从不下雪。考点链接1.-Mary hardly knows about you,_?-No,she knows me very well.A.is she B.does she C.isnt she D.doesnt she2.-Can you catch what I said?-Sorry,I can _ understand it because you speak very quickly.A.almost B.probably C.mostly D.hardly3.

9、-It rained_ and lasted for a long time.-Thats terrible.Even some streets were full of water.A.hardly B.strongly C.heavily D.lightly3.3.易混辨析易混辨析:sometimessometimes，sometimesometime，some timessome times与与some timesome timesometimes有时频度副词表示事情发生的频率，对其提问要用howoftensome times几次名词短语time为可数名词，表示“次数”，对其提问要用ho

10、wmanytimessometime某时候副词 指将来或过去某个不确切的某个时间，some time某时候名词短语 指将来某个不确定的某个时间84.I watch TV every day.我每天都看电视。易混辨析易混辨析：every day every day 与与 everydayeverydayevery day 副词短语，意为“每天”，相当于each day，在句中作状语everyday 形容词，意为“每天的，日常的”，相当于daily,在句中作定语It is necessary for us to learn everyday English every day.我们有必要每天学习日

11、常英语。5.once a week 一周一次 Once adv.（1）意为“一次”，常用来回答how often的提问。How often do you go shopping?你多久购物一次?Once a week.一周一次。（2）还可表示不确定的时间，意为“曾经”，常用于肯定句，与过去时连用。一般位于行为动词之前、系动词之后。He once lived in America.他曾经住在美国。【拓展】once的固定搭配 at once 立刻，马上 once again 再一次 once in a while 偶尔地例句：He once lived in Hangzhou.他曾经住在杭州。Th

12、is book was famous,once but now nobody reads it.这本书曾名噪一时，但现在却无人问津。位于行为边词之前位于be动词之后6.next week is quite full for me,Jack.我下周相当忙，杰克。full full adj adj.忙的；满的；充满的忙的；满的；充满的（1）full 在此处意为“忙的”，相当于busy，其反义词是free“没有安排活动的；空闲的”。This week is too full for me.我这周太忙了。（2）full 意为“满的”，反义词是empty“空的”。短语：be full of=be fil

13、led with“充满”The bottle is full of water.这个瓶子里装满了水。（3）full作形容词时，还可意为“吃饱了的”，其反义词是hungry“感到饿的；饥饿的”Thank you for your delicious cake,but I am really full.谢谢你美味的蛋糕，但是我真的吃饱了。7.How come?为什么呢?“How come?是英语口语中的一个习语，相当于汉语“为什么呢?”或“怎么会呢？”，既可独立使用，也可在其后接句子，用来询间事情的缘由或状况。How come the sky is so blue today?今天的天怎么这么蓝?

14、一Tom didnt come to school today.汤姆今天没有上学。一Really?How come?是吗?怎么会呢？易混辨析易混辨析 why why 与与 how comehow come why其后接的句子要用疑问语序Why are you late again?你为什么又迟到了呢？how come其后接的句子要用陈述语序How come you are late again?你为什么又迟到了呢？8.I go to the movies maybe once a month.我可能一个月去看一次电影。易混辨析易混辨析 maybe maybe与与may bemay bemayb

15、e副词，在句中作状语，意为“大概；或许；可能”，相当于perhaps。may bemay 是情态动词，may be属“情态动词+动词原形”结构，在句中作谓语，意为“可能是”。-I cant find my dictionary.-_ you put it in that bag.A.Must B.May C.Maybe D.May beMaybe she is a doctor.=She may be a doctor.她可能是个医生。He may be at home.=Maybe he is at home.他可能在家。9.She says its good for my health.她

16、说那对我的健康有益。be good be good for for 对对有有益处；益处；其反义短语为其反义短语为be bad for“be bad for“对对.有害有害”。其他常见的由be good+介词“构成的短语be good at擅长后跟名词、代词或动名词作宾语同义短语：do well in在方面做得好反义短语：be weak in在方面薄弱be good to对友好 相当于be friendly to，后面一般接人be good with和相处得好 相当于get well along with，后面一般接人My grandfather likes kids very much and

17、 he is good with them.我的爷爷很喜欢孩子，而且他和孩子们相处得很好。典例Eating vegetables is good_ your health.A.at B.to C.with D.for考点链接：用 考点链接：用be good for,be good with,be good at,be good to be good for,be good with,be good at,be good to 的适当 的适当形式填空。形式填空。（1）_ you _ _ old people?（2）I _ _ _singing and dancing.（3）Eating too

18、much junk food _ not _ _ our health.（4）She _ _ _ her classmates in the new school.am good atis good forAre good tois good with 10.Here are the results.这是（调查的）结果。result result n.n.结果；后果结果；后果常用短语：as a result 结果；因此 as a result of 由于;作为.的结果 without result 徒劳地；毫无结果1.He stayed up late last night._,he was

19、late for school this morning.他昨晚熬夜到很晚。因此，他今天早上上学迟到了。2.She died _her injuries.她由于受伤而死亡。3.I looked for my keys everywhere,but_.我到处寻找我的钥匙，但是没找到。As a resultas a result ofwithout result311.We found that only fifteen percent of our students exercise every day.我们发现只有15%学生每天锻炼。percent percent n.n.百分之百分之（1）p

20、ercent 作名词，意为“百分之，没有复数形式。如：one percent百分之一，thirty percent百分之三十。（2）“基数词+percent+of+名词”结构作主语时，谓语动词的单复数形式由该结构中的_来决定。名词典例用括号中所给词的适当形式填空。1.Almost forty percent of the students_(be)born in the countryside.单项选择2.Sixty percent of the water in the lake _ clean and clear now.A.are B.is C.was D.werewere12.The

21、answers to our questions about watching television were also interesting.关于我们提出的看电视这个问题的答案也很有趣。the answer to.the answer to.的答案的答案the answer to.为固定搭配，意为“的答案”。此处to意为“（表示两人或事物之间的关系）属于，归于”；如：the key to the door 门的钥匙 the key to success 成功的秘诀、关键 the solution to the problem 问题的解决办法 the ticket to the basket

22、ball game 篮球赛的票13.It is good to relax by using the Internet or watching game shows,but we think the best way to relax is through exercise.通过使用互联网或观看游戏类节目来放松很好，但是我们认为通过锻炼的方式放松是最好的放松方式。1.by1.by“通过”表示方式，后接名词、代词或动名词ing形式。She made the toy by hand.He makes a living by selling newspapers.by+交通工具（by后不加冠词），意

23、为“搭、乘、驾”I go to work by bike every day.（1）through 表示方式，意为“以；凭借。I knew this news through a newspaper.（2）through 表示方向，意为“穿过；经过”,多指从内部空间穿过：门、窗、洞、森林、城市、隧道等。The River Thames flows through London.泰晤士河流经伦敦。by+时间，意为“到时（为止）；在.以前；by now 到目前为止 I must go to bed by ten oclock.by+地点，意为“在旁边”They live by the sea.2.

24、through prep.以；凭借；穿过acrossacross，throughthrough与与overoveracross从事物表面横过I went across the road.我穿过马路。through从事物内部穿过The hunter stalked the bear through the woods.那个猎人穿过树林，悄悄走近熊。over从事物上方越过She climbed over the wall.她翻过墙去。The birds singing came into my room _the window and woke me in the early morning.A.

25、down B.from C.through D.across考点链接1.-How do you study English?-I study _ working in groups.A.by B.in C.with D.off2.-Dad,can we walk _ the road now?-No,we_.We have to wait until the light turns green.A.across,neednt B.across,mustnt C.through,cant D.through,mustnt3._is necessary for some people to cha

26、nge their ideas.A.That B.This C.It D.What4.Would you mind_ the window,please?It is too hot.A.open B.opening C.to open D.opens 5.I spend two hours a day_ English.A.speaking B.speak C.speaks D.to speak14.Exercise such as playing sports is fun,and you can spend time with your friends and family as you

27、play together.像体育运动这样的锻炼是有趣的，当你和你的朋友、家人一起运动的时候你们可以度过一段时光。such assuch as与与 for example for example“比如，例如比如，例如”such as用来列举同类人或事物中的几个例子。其前一般用逗号隔开，其后直接加名词性短语,可与like互换。for example用来列举某一论点或情况，一般只列举同类人或事物中的一个，在句中作插入语。用逗号与前后隔开，可置于句首、句中或句末辨析辨析spendspend，costcost，taketake与与paypay例词 主语 宾语 常用结构spend人时间/金钱或精力sb.

28、spend+time/money+on sth.sb.Spend+time/money+(in)doing sth.某人花费时间/金钱在某事上/做某事cost事/物金钱sth.cost(sb.)+money某物花费（某人）多少钱take事/物时间it takes(sb.)+time+to do sth.做某事花某人多少时间pay人 金钱pay for 某人为某物付费15.However,she has some bad habits,too.然而，她也有一些坏习惯。too too advadv.也也；还；太；很；还；太；很（1）too表示“也；还”，常用于肯定句中。He is a teache

29、r,too.（2）too 还可作“太”讲，用来修饰形容词或副词。too.to.意为“太而不能。He runs too fast.The little boy is too excited to fall asleep.易混辨析易混辨析 tootoo，eithereither与与alsoalso“也也”too用于肯定句中，放在句末，其前通常用逗号隔开I can help you,too.我也可以帮你。either用于 否 定 句中，放在句末，其前通常用逗号隔开My father cant go there，either.我父亲也去不了那里。also用于 肯 定 句中，一般放在be动词、情态动词、

30、助动词之后，行为动词之前She also has milk for breakfast.早餐她也喝牛奶。Mary is also 15 years old.玛丽也15岁了。16.He plays at least twice a week.他每周至少踢两次（足球）。at at least least 至少至少；不少于；不少于；起码起码；反义短语是反义短语是at mostat most，意为，意为“至多；不超过至多；不超过。Teenagers need to sleep at least 8 hours every day.You can borrow at most three books o

31、nce.few 比较级：_ 最高级：_little 比较级：_ 最高级：_many/much 比较级：_ 最高级：_fewer fewestless leastmoremost17.She usually watches TV for more than two hours a day.她通常每天看电视超过两个小时There are more than 5,000 students in our school.我们学校有5000多名学生。“no more than+数词”表示“至多；仅仅。There are no more than two books left.最多剩下两本书了。more than 相当于over,“超过，多于”反义短语：less than“少于”Thank you!