2023年新目标八年级上册英语第二单元知识点归纳

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1、2023八年级上册英语第二单元知识点归纳Unit2 How often do you exercise?重点词housework家务劳动；家务事 hardly几乎不；几乎没有 ever在任何时候；历来；曾经 once一次；曾经 twice两次；两倍program节目 full忙的；满的；充满的 maybe大约；或许；也许least最小（的）；最少（的） health n.健康（adj.健康的）percent百分之 although虽然；尽管；即使 through以；凭借；穿过dentist牙科医生 magazine（pl.magazines）杂志；期刊 however然而；但是than（用以引

2、出比较的第二个部分）比 almost几乎；差不多 none没有一个；毫无less较少（的）；较小（的）一、词组、短语：1、help with housework 帮助做家务活，2、go shopping 购物，3、on weekends 在周末， 4、how often 多久一次，5、hardly ever几乎不，6、once a week 每周一次，7、twice a month每月二次，8、go to the movies去看电影， 9、every day 天天， 10、use the Internet上网/用网，11、be free有空，12、have dance and piano l

3、essons 上舞蹈钢琴课 ，13、swing dance摇摆舞 14、play tennis 打网球， 15、stay up late熬夜，睡得很晚16、at least至少， 17、go to bed early 早睡， 18、 play sports 锻炼身体，进行体育活动19、be good for 对有好处，20、go camping去野营，21、in ones free time 在某人的空闲时间，22、not.at all 主线不； 一点儿也不 23、the most popular 最流行； 最受欢迎的24、such as例如， 25、go to the dentist去看牙医

4、，26、more than 超过/多于，27、Old habits die hard.旧习惯难改。 28、 hard=difficult 困难的 ， 29、less than 少于/不到二、习惯用法、搭配1. help sb. with sth 帮助某人做某事 2. How about+n./v.ing?=What about? .怎么样？/ .好不好？3. want sb. to do sth. 想让某人做某事 4. How many + 可数名词复数+ 一般疑问句 .有多少.5. 主语+ find+ that 从句 发现 6. Its + adj.+ to do sth. 做某事是.的7.

5、 spend time with sb. 和某人一起度过时光 8. ask sb. about sth. 向某人询问某事9. by doing sth. 通过做某事 10. Whats your favorite.? 你最喜欢的是什么？11 start doing sth. 开始做某事 12. the best way to do sth. 做某事的最佳方式13、leave for动身去某地二、精讲1How often do you exercise？你多久锻炼一次？ 【解析】本句是具有特殊疑问词how often 的特殊疑问句。how often 多久一次，用于对动作发生的频率进行提问。回答

6、应当是频度副词或表达频率的词组，如always，usually，often，sometimes，hardly，ever，never，every day，once a week，three times a day 等。Eg.How often do you go to the movies?你多久去看一次电影？Once a week. 一周一次。how often: 多久一次，用来提问在某一特定期间内进行某个动作的次数，答语有never, sometimes, often, usually, always, three times a year等。how long: 多长时间， 用来对“for

7、+ 一段时间”提问，强调时间的延续，其谓语动词应为延续性动词；此外，还可用于询问物体的长度。how soon: 需要多长时间，过多久才对“in+一段时间“提问，答语有in a week/ month/ year等。how far：多远，用来询问距离，答语常用“数字 + miles/ kilometers”等。【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2. help with housework 帮助做家

8、务 （1） help with sth. 意为“帮助做某事”拓展：help sb. with sth.= help sb. （to） do sth. 帮助某人做某事Eg: I often help him with his English.= I often help him (to) learn English. 我经常帮他学习英语。（2）housework 意为“家务劳动”。不可数名词。1. They have housework to do.A. many B. much3、 What do you usually do on weekends? 你在周末做什么？【解析1】频度副词意思频

9、度always 总是，一直，100%usually通常，经常90%often经常，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】：频度副词表达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.【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

10、 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）【2023四川绵阳】17_ do you write an English article for our school newspaper? Some

11、times. A. How long B. How often C. How much D. How far【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( ) The teachers never arrive late for work from Monday to Friday.A. on weekdays B. on weekends C. every

12、 day D. five times a week.辨析：sometimes ，some times ，sometime ， some timesometimes 是频度副词，意为“有时；间或”，表达动作发生的频率，相称于at times提问。常用于一般现在时与一般过去时。提问用how oftensome times 是名词短语，意为“几倍、 几次”。time作可数名词时可作“次数”解；表达“时间”时是不可数名词。How mang timessometime 某个时候。可指过去或将来的某个时候。提问用whensome time 一段时间。常与for连用。对它提问用how long 。口诀记忆：

13、分开“一段时间” ；相聚“某个时候”。Eg：Sometimes I get up very late. 有时我起床很晚。I will go to shanghai sometime next week. 下周某个时候我要去上海。He reads the story some times. 他读这个故事几遍了。Ill stay here for some time. 我将会在这儿呆一段时间。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 hav

14、e letters from him. 有时我会收到他的来信。4. Hardly ever 几乎从不【解析】hard (1)adv 努力地，剧烈地 work hard 努力工作 study hard 努力学习(2) adj. 困难的，艰难的 =difficult Its hard/difficult for sb to do sth 做某事对某人来说是困难的Its hard for us _(finish) the work without others help.【拓展】hardly adv “几乎不，历来不” ，表否认意义，常与can ,any ,ever 连用。 I can hardly

15、 believe it. ( ) Its 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辨析：hardly 与hardhardly 几乎不，一般位于动词之前。 hard 努力，位于动词之后。eg：He hardly works. 他几乎不工作。 He works hard. 他工作努力。5. use the Internet 用互联网use sth. to do sth. 用某物做某事eg：I use a

16、 knife to cut bread. 我用刀切面包。短语：on the Internet 在网上 ， surf the Internet 网上冲浪，上网5. Whats your favorite program？ 你最喜欢的节目是什么？句型：Whats your favorite.?=What. do you like best？你最喜欢的.是什么？1.Whats your favorite animal？你最喜欢的动物是什么？= _6. Are you free next week？ 你下周有空吗？free 意为“空闲的，有空的”，反义词busy。 be free 意为“闲着，有空”e

17、g:：He is free now.他现在有空。拓展：free还可译为“免费的”Eg：The tickets are free. 票是免费的7.twice a week一周两次 【解析】英语中，once表达“一次”，twice表达“两次”，从“三次”起用“基数词times”表达次数。three times三次，five times五次。8. Hmm.next week is quite full for me，Jack.呣下周我很忙，杰克。【解析】full adj. 忙的；满的；充满的常用短语为be full of.，意为“充满”；反义词是empty，意为“空的”。Eg. The bus is

18、 full of people. 公共汽车里挤满了人。full adj. 吃饱的；过饱的，其反义词是hungry，意为“饥饿的”。Eg. Are you hungry or full？你饿了还是饱了？She sometimes goes shopping. 她有时去购物。(P11. Grammar Focus)【解析】sometimes为频度副词，意为“有时候”，多用于一般现在时或一般过去时中。 辨析： sometimes, sometime, some time与some times Sometimes意为“有时”，可放于句首或句中。（How often提问） Sometime表达在某个时间

19、段内的某个时候，既可以表达过去某个时间也可以表达将来的某个时间。（When提问） Some time 名词性短语，意为“一些时间”，time是不可数名词，意为“时间”。 （How long提问） Some times表达“几次”，time是可数名词，表达“次；次数”。 （How many times提问）Eg. Even friends sometimes disagree. 即使是朋友，有时也会意见不合。 I hope to see you again sometime next year. 我希望明年的某个时候能再见到你。 Please give me some time to red t

20、his passage.请给我一些时间看这篇文章。 I have been to Beijing some times before. 我以前往过北京几次。9. How come? 怎么会？ 怎么回事？How come?是固定表达，意为“怎么回事？/怎么会？”表达某件事情很奇怪，有点想不通；可单独使用，也可引导一个问句， 相称于疑问句 why, 但 how come 开头的特殊疑问句使用的仍然是陈述语序。How come Tom didnt come to the party? = Why didnt Tom come to the party?10. I have dance and pia

21、no lessons. 我要上舞蹈课和英语课。have 在此意为“上课”。Eg: Theyre having an English lesson. 他们正在上英语课。扩展：have lessons 上课 ， Lesson One 第一课11. Well ，how about Tuesday？ 哦，那周二呢？How about.? (=What about.?) 意为“怎么样？”，用来征求对方的意见。Eg: How about this book? 这本书如何？How / What about doing sth. .? 做怎么样？Eg：-What will we do on Sunday？ 星

22、期天我们什么？-How about visiting the museum？ 去参观博物馆咋样？1. Its sunny today，What about _（play）tennis？12I go to the movies maybe once a month.我也许一月去看电影一次。【解析】maybe adv. 大约；或许；也许Eg. Maybe that man is a policeman. 或许那人是警察。maybe 和may bemaybe副词，意为“或许；大约”，常位于句首表推测。Maybe he is at Jims home.或许他在吉姆家。may be由情态动词may和 b

23、e构成，意为“也许是、也许是”，在句中作谓语。He may be right.他也许是对的。【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，也许，表达推测，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，也许是

24、，也表达推测，在句中作谓语。可以和maybe 互换。Toms pen may be in his backpack. =Maybe Toms pen is in his backpack【江苏南通】Now all of us exercise at _ least _ hour a day in and outside school. A. the ; a B. a; an C. /; a D. /; an 13He plays at least twice a week.他至少一周踢(足球) 两次。【解析】least adv.最小；最少adj.& pron.最少的；最小的，它是little的

25、最高级。Eg. He has least money of all of us. 在我们所有人中他的钱最少。She works least. 她工作最少。We have least time.我们时间最少。at least 至少；不少于；起码，其反义短语为：at most 至多14. On Wednesday and Friday. 在周三和周五 【解析】介词at/ in /on /for表达时间：1)at.表达某一具体时间点，某一时刻/ 年龄 at six oclock at noon at that time at the moment at the age of at night 2)i

26、n表达时间段,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 2023/in March in the twenty-first century in his fifties3)on表达星期几/某一具体的日子/具体某天的上午/下午/晚上,表达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 Years Day on Sunday morning on a rainy night g. At least he should say thank

27、s. 他至少应当说声谢谢。15. 频度副词【解析】频度副词表达经常性的动作或情况，常和一般现在时连用，表达现在经常或反复发生的动作，按其频率发生的高低分别是：always 总是； usually 通常；often 经常； sometimes 有时；hardly ever 几乎不；never 从不。对这些频度副词进行提问时，用特殊疑问词how often，意为“多久一次”。Eg. They always go to the park by bus. 他们总是乘公共汽车去公园。Kate is often late for school. 凯特经常上学迟到。I sometimes_watch TV

28、programs.(对画线部分提问)How often do you watch TV programs? 你多久看一次电视节目？16. But my mother wants me to drink it. 但我妈妈想让我喝它。want sb. to do sth. 意为“想让某人做某事”，否认形式为want sb. not to do sth. 意为“不想让某人做某事”。Eg：She wants me to bring him some pens. 她想让我给她带些钢笔。拓展：1.want sth. 想要某物Do you want any story books？你想要些故事书吗？2.wa

29、nt to do sth. 想要做某事I want to visit my uncle. 我想去看望我的叔叔。Do you want （tell）me anything？17She says its good for my health. 她说它对我的健康有益。【解析】be good for 对有益Eg. Exercise is good for you. 锻炼对你有益。be good at 在方面做得好；擅长Eg. He is good at learning languages. 他擅长学习语言。Eg. be good with 与相处融洽The teacher is good with

30、his students. 这位老师和他的学生相处融洽。Eg. be good to 对和谐 My new deskmate is good to me. 我的新同桌对我很和谐。health n. 健康，是不可数名词。Eg. I think health is more important than money. 我认为健康比金钱更重要。be in good/poor health 身体状况好/不好My grandparents are both in good health. 我祖父母身体都很好。healthy adj. 健康的We should eat healthy food. 我们应当

31、吃健康的食物。unhealthy adj.不健康的Junk food is unhealthy. 垃圾食品是不健康的。18.How many hours do you sleep every night？你天天晚上睡几个小时？【解析】how many 和how muchhow many和how much都可以表达“多少”，但how many后接可数名词复数，而how much后接不可数名词。Eg. How many girls can you see? 你能看见多少个女孩？How much milk do you want? 你想要多少牛奶？【拓展】词语词义用法答语特性how long多久询问

32、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等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 walkhow 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+表达量的词+不可数名词多少钱询问价格数词+钱19. Last month we asked our students about their free time activities. 上个月我们向学生询问了他们业余活动的情况。ask sb. about sth. “询

33、问某人关于某事”Eg:I asked my teacher about todays homework. _。【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(否认形式)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).20. Here are the results. 这是（调查）结果。here 位于句首，句子要倒装。当主语是名词性短语时，要用全倒装，即“here +谓

34、语+主语”；当主语是人称代词时，要用半倒装，即“here+ 主语+谓语”。Eg：Here is your jacket. 这是你的夹克。Here he comes. 他来到这儿。Here comes the bus. 汽车来了。21、.twenty percent students dont exercise at all. 百分之20的学生主线不锻炼。. 百分数由percent来表达，构成：基数词+percent 。Eg：Seventy percent of the boys like playing computer games. 男生中70%喜欢完电脑游戏。 not. at all 意为

35、“一点儿也不，主线不”。用来加强否认语气。Eg：I dont know about it at all. 对那件事我一点也不知道。拓展：not at all = you are welcome 意为“不用谢，不客气”。Eg：-Thank you for your help. -Not at all.22、. Although many students like to watch sports，game shows are the most popular. 尽管许多学生喜欢看运动类节目，但游戏类节目是最受欢迎的。although 连词。意为“虽然，尽管”。but 意为“但是”。英语中，alt

36、hough与but不能同时使用。Eg：Although it rained，the boys still played outside.= It rained，but the boys still played outside. 尽管天下雨了，但男孩们仍在外面玩耍。1. My cousin knows a lot about geography， he is only four years old.A. because B. so C. although23.Its good to relax by using the Internet or watching game shows，but w

37、e think the best way to relax is through exercise.尽管通过上网或观看游戏节目对放松很有好处，但是我们认为锻炼是最佳的放松方式。【解析】这是一个“Its+adj+to do sth.”的句型结构，意为“做某事是.”。其中it是形式主语，真正主语是动词不定式 to relax by using the Internet or watching game shows；拓展：Its + adj.(easy,difficult,important,necessary) +(for sb.) to do sth.Its+adj+（for sb.）+to d

38、o sth. 意为 “（对某人来说）做某事是的”。该句中的形容词用于描述事物的特性，表客观情况，如difficult（困难的），hard(困难的)，easy（容易的）Eg：Its very important to listen carefully in class. 上课认真听讲很重要。Its easy for us to swim. 对我们来说游泳很容易。Its +adj( kind, honest, friendly, )+(of sb) to do sth.： 意为“某人做某事是.”，该句中的形容词用于描述人物的品质，表主观情感和态度。By在此处表达方式、方法、手段，意为“凭借；靠；用

39、；通过”。其后通常接名词或动名词，作方式状语，可放在句首也可放在句末。By作为介词用法：by+交通工具 乘. by+时间 在.之前，到.为止 by+地点 在.旁边；靠近.24、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 “从中通过” ，强调动作发生在立体空间，指从物体的空间内

40、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。( ) _ he isnt rich enough, he often gives away money to some poor children. A. Though B. When C. Because D. If( ) _ he is very tried, he still tries _. A. Because ; work B. Because; to work C. Although; working D. Although ;to work25.Exercise such a

41、s playing sports is fun，and you can spend time with your friends and family as you play together.像参与体育运动这样的锻炼是有趣的，并且你可以与你的朋友和家人一起花费时间进行锻炼。【解析】such as 例如；像这样表达举例，相称于like。Eg. I like animals such as cats and dogs. 我喜欢动物，像猫和狗。such as结构既可表达为“名词such as例子”，也可表达为“such名词as例子”。Eg. I enjoy songs such as this o

42、ne.I enjoy such songs as this one.我喜欢像这首歌同样的歌。【解析1】such as/ for example辨析：（1）such as “例如，像同样” 经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 st

43、h/ in doing sthpay人金钱pay. for cost物金钱sth cost sb. some moneytake it时间It takes sb. . to do sth重点： spend timemoney on sth. 在.上花费时间或金钱He didnt spend much time on his homework. 他没在作业方面花很多时间。I spend 200 yuan on a new coat. _ spend timemoney （in） doing sth. 花费时间或金钱做某事Dont spend too much time watching TV.

44、不要花费太多时间看电视。He always spend his time playing football. _Eg: I enjoy playing computer games,but I cant too much time that.A.take, doing B.spend, doing C.spend, for doing D.take, to do26And remember，“old habits die hard”请记住：“旧习惯是很难摈弃的”。 【解析】die v. 消失；消灭；死亡(1)作“死亡”讲，是不及物动词，不能用于被动语态，强调动作，是瞬间动词，不能与表达一段时间

45、的状语连用。Eg.His grandfather died five years ago. 他祖父五年前往世的。(2)die可以用于进行时态，表达“即将死去，奄奄一息”。Eg.He is dying.他快要死了。dead 死的，是die的形容词形式。可作表语或定语。作表语时，表达状态。Eg.His dog has been dead for two weeks. 他的狗已死了两周了。death 死亡，是die的名词形式。Eg.His mothers death made him very sad. 他母亲的去世使他非常伤心。27.However，she has some bad habits，

46、too.然而，她也有一些坏习惯。【解析】however adv. 然而；但是Eg.He said that it was so；he was wrong，however他说事情是这样的，但是他错了。however和but两者都有“然而；但是”之意，具体用法不同。however 副词，可以放在句首、句中或句末，置于句中时，前后通常用逗号隔开。Eg. He wanted to go to the shopping mall，however，he didnt go at last.他想去购物中心，但最后还是没去。but并列连词，经常在句中，引导一个表达转折关系的并列句。Eg. Mike is you

47、ng，but he can do it well. 迈克虽然年龄小，但是他能做好那件事。however adv.无论如何；不管如何，相称于no matter how。Eg.However difficult it is，I want to have a try.No matter how difficult it is，I want to have a try.不管多么难，我都想试一试。too adv.也，常用于肯定句末尾，前用逗号；也可作为插入语放在句中，前后均有逗号。在简略答语里，too常用于宾格人称代词后。Eg. You，too，can do it.你也可以做。I want to exe

48、rcise.我想锻炼。Me，too.我也想。too，also和either三者都有“也”的意思，但所放位置及所处的句式不同。too常放在肯定句末尾。Eg. I like surfing the Internet，too. 我也喜欢上网。also常放在肯定句中，系动词、助动词或情态动词后，实义动词前。Eg. I also like playing volleyball. 我也喜欢打排球。either常放在否认句末尾。Eg. He didnt go skateboarding，either. 他也没去滑滑板。28.She usually watches TV for more than two h

49、ours a day.她通常一天看两个多小时的电视。【解析】more than 多于，常用在数词之前，表达数量超过多少，同义词是over。其反义短语是：less than 少于Eg. She sleeps more than/over nine hours every day. 她天天睡觉达九个多小时。more than one 后接单数名词作主语时，谓语动词用单数形式。Eg. More than one answer is to your question. 你的问题答案不只是一个。29. She says she is afraid. 她说她胆怯。_【解析】afraid adj “紧张的，

50、胆怯的”.be afraid to do sth胆怯做某事，（强调主观上的因素不去做）Eg：I am afraid to travel by plane. 我胆怯乘飞机旅行。 . be afraid of doing sth胆怯做某事 （强调为紧张出现的状况或结果，是客观导致的而不敢去做）Dont be afraid of asking questions. 不要怕问问题。be afraid of sb. sth. 胆怯某人某物 Eg：She is afraid of the dog. 她胆怯那只狗。be afraid to do sth.= 胆怯做某事30. Less than six. 少

51、于6小时。Less than 意为“不到，少于”。其反义词为 more than over “多余，超过”Eg：She sleeps less than seven hours every night. 他每晚的睡眠时间不到7小时。We know Tom for 20 years. 我们结识Tom超过2023了31.stay up late 指“熬夜到很晚，迟睡”。 Dont stay up late next time. stay up 指“熬夜，不睡觉”。 He stayed up all night to write his story.语法归纳频度副词1. 概念频度副词是用来表达动作发

52、生频率的词，常用来表达不拟定期间，重要涉及always, usually, often, sometimes, hardly, ever, never等，假如表达具体频度次数，可采用次数加单位时间。例如：once a week 一周一次twice a month 每月两次如：He hardly never exercises.他几乎从不锻炼。注意：表达具体的次数、频率时，一次用once，两次用twice，三次及以上用“基数词+times”表达。如：I play soccer twice a week.我每周踢两次足球。She watches TV four times a week.她每周看四

53、次电视。2.在句中的位置1）一般放在实义动词前，be动词、助动词、情态动词之后。如：We never eat junk food.我们历来不吃垃圾食品。I can hardly say a word.我几乎说不出一句话来。He is sometimes very busy.他有时很忙。2）有些频度副词也可位于句首，但表达不同的含义simetimes常用于句首，和位于句中区别不大。如：Sometimes Jack plays computer games.often用于句首时，通常表达强调，且其前一般有quite,very修饰。如：Very often he goes online.他上网很经常

54、。usually有时也可用于句首，其前不用修饰语。如：Usually my father gets up early.always一般不用于句首，但可用于祈使句中。如：Always remember this.请时刻记住这一点。3）对频度副词提问时，用特殊疑问词how often。如：-How often do you exerxise? -Hardly ever.几乎从不。频度副词意思频度always 总是，一直，100%usually通常，经常90%often经常，经常70%sometimes 有时，不时40%hardly ever几乎从不5%never 从不，决不0% 【拓展】一般现在时

55、： 1. 概念：一般现在时表达经常发生或习惯性的动作或状态及客观现实和普遍真理 一般现在时常以动词原形表达，但当主语是第三人称单数时，动词词尾加-s或-es。2.时间状语： always, usually, often, sometimes, every week (day, year, month), once a week, on Sundays, 基本结构：be动词；am/is/are She is an engineer. 行为动词 :动词原形、第三人称单数。He has breakfast at 6:00every day.a)一般现在时通常与always , often , usu

56、ally , every day , sometimes , once a week等时间状语连用。I always watch TV at 8:00 in the evening .They go home once a week .We usually do our homework at home .b)表客观现实或普遍真理。The sun always rises in the east .The light travels faster than the sound .c)表永远性的动作或状态。He lives in the country .4.否认形式：am/is/are+not

57、; dont /doesnt +动词原形+ 5.一般疑问句：把be动词放于句首； Do/Does +动词原形+? 6.第三人称单数变化形式。1)一般情况动词在词尾加-s .come-comesspeak-speakswork-workslive-lives2)以o, s, x, ch, sh结尾的单词在词后加-es.do-doesgo-goesfinish-finishesbrush-brushesfix-fixespass-passeswatch-watches3)以“辅音字母y”结尾的单词变y为i加-es.Study-studiescarry-carriescry-cries4)以“元音字母y”结尾的单词直接加-s.play-playsstay-stays