人教版八年级英语下册知识点全总结!(2020年整理)x课件.pptx
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1、人教版最新八年级英语下册知识点全总结!Unit1 what s the matter?1.Its+形形容容词词+for sb.+to do sth.做做某事对某事对某某人来人来说说是是的的。Its important to do sth.做某事很重要。Its important for me to eat a balanced diet.平衡饮食对我来说是很重要 的.Its easy to do sth.做某事是容易的。Its easy for us to find out the answer.找出答案对我们来说是容易的。2.情情态动态动词词 should 的的用用法法should 是情态动
2、词,它的基本用法是必须和其他动词一起构成谓语。意为应 该.。should(应当,应该)用于所有人称,表示劝告或建议。eg.-I have a very bad cold.我感冒很厉害。-You should lie down and have a rest.你应该躺下,多喝水。3.maybe 与与 may be1maybe 是副词,译为“也许、可能”,相当于“perhaps”。如:Maybe he can answer the question.也许他能回答那个问题。He maybe is from the USA,too.他可能也来自美国。2may be 中的 may 为情态动词,译为“可能
3、是.”。如:He may be from the USA,too.他可能也来自美国。She may be our English teacher.她可能是我们的英语老师。1人教版最新八年级英语下册知识点全总结!I t s +形容词+24.few、a few、little、a little 的的区区别和别和联联系系:1few/a few 用来修饰可数名词,few 表示否定意义,没有,几乎没有;a few表示肯定意义,有几个。例如:He has few friends here,he feels lonely.他这里没朋友,他感觉寂寞。There are a few eggs in the bas
4、ket.篮子里有几个鸡蛋。2little/a little 用来修饰不可数名词,little 表示否定意义,没有,几乎没有;a little 表示肯定意义,有一点儿。例如:There is little ink in my bottle.Can you give me a little ink?我的瓶子里 没有墨水了,你能给我点儿墨水吗?5.notuntil直直到到(否定句否定句)才才.,动动词词为短暂为短暂性性或瞬或瞬间间性动性动词词。She didnt leave until we came.He went shopping after he got up.=He didnt go sho
5、pping until/before he got up.until/till直到.(肯定句)动词为延续性动词We stayed here till/until 12 oclock.Unit2 Ill help clean the city parks.1.短短语动语动词词小小结结常见动词短语结构有下面几种:(1)动词+副词 如:give up 放弃;turn off 关掉;stay up 熬夜2 4.f e w、a f e w、l i t t l e、a l i t t l e 3这种结构有时相当于及物动词,如果其宾语是代词,就必须放在动词和副词之间,如果是名词,则既可插在动词和副词之间,也
6、可放 在短语动词后。2动词+介词 如:listen of 听;look at 看;belong to 属于 这种结构相当于及物动词,后面跟宾语。3动词+副词+介词 如:come up with 提出,想出;run out of 用完,耗 尽4动词+名词+介词 如:take part in 参加;catch hold of 抓住2.each 每个,各自的,强调事物的个别情况,常与 of 连用every 每个,每一个的,一切的,有“全体”的意思不能与 of 连用3.help sb.(to)do 帮 助 某 人 做 某 事 help him(to)study help sb.with sth.帮助某
7、人做某事 help him with English help do帮助做某事help study4.spend.doing.花费花费做做I spent a day visiting Beijing.我花了一天的时间去参观北京。spend on sth.花费在 I spent 3 years on English.5.join 参加 (指参加团体、组织)如:join the Party 入党take part in 参加 (指参加活动)如:take part in sports meeting 参加运动会6.run out 与与 run out of(1)run out(become used
8、 up).其主语往往为物。如时间,食物,金钱,油 等,本身就含有被动意义。3 这种结构有时相当于及物动词,如果其宾语是代词,就必须放在动4His money soon ran out.他的钱很快就花光了。Our time is running out.我们剩下的时间不多了。(2)run out of 主语为人,表示主动含义。He is always running out of money before pay day.他总是在发工资的 日子还没有到就把钱花完了。两者在一定条件下可以互换如:The petrol is running out.汽油快用完了=We are running out
9、of petrol.Our time is running out.我们剩下的时间不多了。=We are running out of time.7.work out1结局,结果为The strategies that he came up with worked out fine.他提出的这个策略 效果很好。2算出,制订出,消耗完(精力等)He never seems to be worked out.他好像永远不会疲乏似的。He worked out a plan.他制订了一个计划。I have worked out our total expenses.我已经算出了我们总的费用。8.ha
10、ng out 闲闲 荡荡 闲闲 逛逛I like to hang out at mall with my friends.我喜欢和我的朋友一起去购物中心 闲荡。4 H i s m o n e y s o o n r a n o u t.他的钱很快59.be able to do 能,会be unable to do 不能,不会10.for sure确确实实如如此,毫此,毫无无疑疑问问You dont have money.Thats for sure.你没有钱,这是毫无疑问的。11.fill with 使使充满充满用用填充填充She filled the bowl with water.她用水
11、填满碗。12.hand out分发hand out bananasgive out 分发give out sth to sb.分.给某人 give up doing 放 弃give up smoking 放弃吸烟 give away 赠 送 捐赠give away money to kids give sb.sth.给某人某东西give me money 给我钱give sth.to sb.给某人某东西 give money to me 给我线13.help sb.out 帮帮助助做事,解做事,解决决难难题题(摆脱摆脱困困境境)I cant work out this math problem
12、.Please help me out.我不能算出这道 数学问题,请你帮我解决。14.train n.火火车车v.训训 练练train sb.to do.训练某人做某事She trains her dog to fetch things.她训练她的狗去取东西。15.at once=right away 立刻 马上 如:Do it at once.马上去做。Ill go there at once/right away.我马上去那里。5 b e a b l e t o d o 能,会616.one day 有一天(指将来/过去)some day 有一天(指将来)如:One day I went
13、to Beijing.有一天我去了北京。Some day Ill go to Beijing.有一天我将去北京。Unit3 Could you please clean your room?1.关关于于 to 的短的短语总语总结结have to do sth.不得不/必须做某事need to do sth.需要做某事 hate to do sth.讨厌做某事 like to do sth.喜欢做某事 want to do sth.想做某事 love to do sth.热爱做某事 forget to do sth.忘记做某事 start to do sth.开始做某事 begin to do
14、sth.开始做某事ask sb to do sth.请某人做某事2.-Could you please clean your room?-Yes,sure./Sorry,I cant.I have to do my homework first.-Could I please use the car?-Sure./Certainly./Of course./No,you cant.I have to go out.在表示请求帮助或请求允许的疑问句中,常用 could 代替 can,以表示礼貌,6 1 6.o n e d a y 有一天(指将来/过去)U n i t 37委婉或不确定的语气,而
15、can 则不具备这些语气。这种情况下不能把 could 看作 can 的过去式。以上两句中用 could 是为了表示礼貌的请求。表示请求帮助 或请求允许时,除了 can,could 之外,还可以用 may,句子的表达方式也各有 不同,可以用不同的方式来表示同一个概念。例:Could/Can/May I use your car for a day?作允答可以各种各样:如同意可以说 Yes,或 Sure 或 Certainly,还可说 Yes,(do)please.或 Of course.(you may/can).或 Thats OK/all right.如果不同意,可以说 Im sorry
16、you cant.或 Im really sorry,but I have to use it today.要避免说 No,you cant.这样显得很不礼貌。否定回答通常用委 婉语气。Unit4 Why dont you talk to your parents?1.get(1)买get sth.for sb.=get sb.sth.为某人买某物Can you get some fruit for me when you go shopping?=Can you get me some fruit when you go shopping?(2)得到,到达Where did you get
17、thebook?When didyou get the letter?He got home late last night.7 委婉或不确定的语气,而 c a n 则不具备这些语气。这种情况8(3)使,让,get+宾语+宾补使某人/某物怎么样Please get you coat clean.Get your mouth closed.get sb.to do sth.使某人做某事I got him to call Jim yesterday.(4)(逐渐)变得.The weather gets warmer and days get longer.Why did the teacher g
18、et angry?2.how about/what about后跟后跟名名词词/代代词词/动动词词 ing 形式。形式。1向对方提出建议或请求How about going out for a walk?How about something to eat?2向对方征求意见或看法How about the TV play?How about buying the house now?(3)询问天气或身体情况How about the weather in Hainan Island?How about your parents?Are they living with you?(4)谈话中承接
19、上下文Im forty years old.How about you?Im from Beijing.How about you?3.receive 收收 到到8(3)使,让,g e t +宾语+宾补使某人/某物怎么样9The girl was happy to receive many gifts on her birthday.receive a letter from=get a letter from=heard from 收到某人的信Ireceived a letter from my parents last Sunday.=I got a letter from my pare
20、nts last Sunday.=I heard from my parents last Sunday.accept接受接受He couldnt accept our suggestions but our gifts.She was very glad to receive the invitation.I received an invitation to the party,but I refused to accept it.4.a 6-year-old child 一一个个六岁六岁的的孩孩子子6-year-old 是由“数词+名词+形容词”构成的复合形容词,作前置定语,修饰后面的名
21、词 child。“数词+名词+形容词”构成的复合形容词,中间的名词要用单数形式:afive-year-old girl一个五岁的女孩a two-meter-long ruler 一把两米长的尺子a ten-story-high building 一栋十层高的楼房a two-inch-thick dictionary 一本两英寸厚的词典5.too.to 太太而而不不能能 too 后跟形容词或副词原形,to 后跟动词原形,构成不定式,句子的主语与动词 不定的主语不一时,可以在动词不定式前加逻辑主语 for sb。He is too young to join the army(军队).他年纪太小,
22、不能去参军。9 T h e g i r l w a s h a p p y t o r e c e i v e10The math problem is too difficult for me to workout.这道数学题对我来说太难了,做不出。too.to可以与 enough to 和 sothat转换.She is too young to do the work.=She isnt old enough to do the work.Tom is too tired to walk any farther.=Tom is so tired that he cant walk any
23、 farther.6.pay,spend,cost,take的的区区别别(1)pay花费(多少钱),主语是人。sb.pay some money for sth.I paid 5000 yuan for the computer last week.我上个星期花了 5000 买电脑。(2)spend花费(多少钱或时间),主语是人。sb.spend some money on sth.sb.spend some time(in)doingsth.I spent 5000 yuan on the computer last week.She spent 2 hours(in)doing her h
24、omework.她花了 2 个小时做作业。3cost花费(多少钱),主语是物。sth.cost sb.some money.This jacket cost him 200 dollars.这件夹克衫花费她 200 美元。4take 花费(时间),主语形式主语为 It.It takes sb.some time to do sth.花费某人多少时间做某事How long does it take sb.to do sth?花费某人多少时间做某事?1 0 T h e m a t h p r o b l e m i s t o o d i f11It took Liu Hong 2 hours t
25、o do her homework.刘红花了 2 个小时做作业。7.sleep,sleeping,sleepy,asleep,fall asleep,be asleep(1)sleep动词,睡觉,强调动作。I am very tired.I want to sleep.我很累,想睡觉。2sleeping,sleep 的现在分词,表示“正在睡觉”。Dont make so much noise.The baby is sleeping.不要这么吵,宝宝在睡觉。3sleepy想睡觉的,困倦的。I am a little sleepy.Id like to go to bed.我有点困了,我想去床上
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