外研版八年级下英语各单元知识点课件

1、外研版八年级下英语各单元知识点课件外研版八年级下英语各单元知识点课件Module1 Feelings and impressions知识点课件Module1 Feelings and impressio外研版八年级下英语各单元知识点课件Unit 1It smells delicious.知识点一smell的用法教材原文What a delicious smell!好香的气味啊!smell作名词,意为“气味”,可以作可数名词,也可以作不可数名词。There are various smells in the room during the hot weather.在天气热的时候,房间里各种气味都

2、有。This flower hasnt much smell. 这花的香味儿不浓。Unit 1It smells delicious.知识点闻;闻出此时是及物动词,其后可以直接跟名词或代词作宾语。如:Smell this and tell me what it is. 闻闻这个,告诉我它是什么。闻起来此时作感官动词,其后可以跟形容词作表语。如:The flower smells nice. 这朵花闻起来很香。拓展延伸smell还有如下含义和用法:闻;闻出此时是及物动词,其后可以直接跟名词或代词作宾语。如:例(2018广西桂林一中期中)Your cookiesdelicious. May I t

3、ry some?A.smellB.soundC.tasteD.see解析本题考查smell的用法。句意:你的饼干闻起来真香。我能尝一些吗?由句意可知设空处意为“闻起来”,要用smell,故答案为A。答案A例(2018广西桂林一中期中)Your cookie知识点二由look归纳常见的感官动词教材原文Your pizza looks so nice.你的比萨饼看起来很美味。本句是主系表的结构,其中look是感官动词,意为“看起来”,后跟形容词作表语。You look worried.你看起来很担心。The flower looks nice.那朵花看起来很漂亮。知识点二由look归纳常见的感官动

4、词 拓展延伸常见的感官动词有: 拓展延伸常见的感官动词有:例 (2017山东青岛中考) These oranges look nice, butvery sour.A.feelB.tasteC.soundD.look解析本题考查感官动词的用法。句意:这些橙子看起来很不错,但尝起来很酸。根据本题语境可知,所缺的词是taste“尝起来”,故答案为B。答案B例 (2017山东青岛中考) These orang知识点三try的用法和搭配教材原文Would you like to try some? 你想要尝一些吗?本句中try作动词,意为“试;试用”,可以作及物动词,也可以作不及物动词。Please

5、try this new soap. 请试试这块新肥皂。I dont think I can mend this watch, but Ill try. 我认为我修不好这块表,不过我会试一试。拓展延伸try还可以作名词,意为“尝试”。Do you want a try? 你想试一下吗?知识点三try的用法和搭配归纳总结常见的try短语有: 归纳总结常见的try短语有:例(2018江西中考)The food is very delicious in that restaurant. We could go andit.A.sellB.helpC.produceD.try解析本题考查动词的词义理解

6、。四个选项的含义分别是:sell卖;help帮助;produce生产;try尝试。根据题干中的“那家餐厅的食物很美味”可推断,我们可以去尝一尝,故所缺的词是try。答案D例(2018江西中考)The food is ver知识点四Im afraid+that从句教材原文Im afraid I dont like cheese.我恐怕并不喜欢奶酪。本句是“Im afraid + that从句”的结构,表示“恐怕”,其中that可以省略,该句用于委婉地拒绝别人。Im afraid I cant go to your birthday party.我恐怕不能去你的生日聚会了。归纳总结由afraid构

7、成的短语和交际用语有:be afraid of sb./sth.害怕某人或某物be afraid to do sth.害怕做某事;不敢做某事be afraid of doing sth.担心做某事;害怕做某事Im afraid so.恐怕是这样。Im afraid not.恐怕不行。Im afraid (that).恐怕知识点四Im afraid+that从句be afWe are afraid of spiders.我们害怕蜘蛛。The girl is afraid to go out at night.那个女孩晚上不敢出去。We are afraid of falling into the

8、 river.我们害怕掉进河里。例根据汉语意思完成句子我恐怕不能和你一起去参加聚会了。 I cant go to the party with you.解析本题考查Im afraid that.的句式结构。答案Im afraid thatWe are afraid of spiders.我们害怕蜘知识点五salt的含义及派生词教材原文It might be salt!它可能是盐!salt是不可数名词,意为“盐”。There is little salt in the box. Lets go and buy some. 盒子里几乎没有盐了。让我们去买一些吧。拓展延伸salt的形容词是salty

9、,意为“含盐的;咸的”。The soup is very salty. Maybe you added too much salt. 这个汤很咸。或许你加了太多盐。知识点五salt的含义及派生词例(2016山东威海中考)根据汉语意思翻译句子请把盐递给我好吗? 解析翻译该句时,“递给”要用pass,“盐”要用salt。答案Would you please pass some salt to me? 例(2016山东威海中考)根据汉语意思翻译句子解析知识点六message的用法教材原文Thanks for your last message. 谢谢你的上一封邮件。message作名词,意为“电邮信

10、息;口信;消息”。Can I take a message for him? 我能为他捎个口信吗?拓展延伸短语:leave a message 留口信take a message for sb. 为某人捎口信Unit 2I feel nervous when I speak Chinese.知识点六message的用法Unit 2I fee例(2017广西南宁四十九中第一次月考) 根据句意和汉语提示写出所缺的单词Lisa isnt at home, so I will leave her a(口信).解析本题考查message的用法。句意:莉萨不在家,所以我会给她留个口信。答案message例

11、(2017广西南宁四十九中第一次月考) 根据句意和知识点七cant wait to do sth. 的用法教材原文It was great to hear from you, and I cant wait to meet you.收到你的来信太好了,我都等不及要见你了。cant wait to do sth.是固定搭配,意为“等不及做某事;迫不及待做某事”。We cant wait to have an interview with the pop star. 我们迫不及待要去采访那位流行音乐歌星。知识点七cant wait to do sth. 例(2018安徽合肥五十中期中)I have

12、nt seen my grandparents for long. I cant waitthem.A.visitingB.visitC.to visitD.visits 解析句意:我很长时间没有见过我祖父母了。我迫不及待要去看望他们了。根据cant wait to do sth.的搭配可知答案为C。答案C例(2018安徽合肥五十中期中)I havent 知识点八when 引导的时间状语从句教材原文I hope you will know me from my photo when I arrive at the airport. 我希望当我到达机场的时候,你能够根据我的照片认出我来。 本句结

13、构较为复杂,首先,它含有宾语从句,主句是I hope,宾语从句是you will know me from my photo when I arrive at the airport;该宾语从句中还含有when引导的时间状语从句,when是连词,意为“当的时候”。It was raining when we arrived there. 我们到达那里的时候,天正在下雨。知识点八when 引导的时间状语从句例(2018广东佛山顺德区第14周教研联盟)What were you doingI knocked at the door?I was sleeping. A.unlessB.onceC.w

14、henD.if解析本题考查连词的用法。结合本题语境可知,问句问的是“当我敲门的时候你正在做什么”,表示“当的时候”要用when,故答案为C。答案C例(2018广东佛山顺德区第14周教研联盟)解析本知识点九spend 的用法和句式教材原文I spend a lot of time playing classical music with my friends at school.我上学时把很多时间都花在了和我的朋友们演奏古典音乐上本句是sb. spend(s) some time doing sth.的句式,意为“某人花费多长时间做某事”,注意spend要和doing sth.搭配,不能和to

15、do sth.搭配。Mike spent two hours finishing his homework. 迈克花了两个小时完成了他的家庭作业。注意spend的主语是人,可以表示“花时间”,也可以表示“花钱”,spend除了可以和doing sth.搭配之外,还可以和介词on搭配。知识点九spend 的用法和句式They spent two days on their new project.他们在新项目上花了两天时间。 My sister often spends her money on fine clothes.我姐姐经常把钱花在漂亮衣服上。例(2017黑龙江哈尔滨中考)My favo

16、rite TV program is Readers. I think we should spend as much time as we canin our spare time.A.readB.to readC.reading解析本题考查固定搭配。spend some time doing sth.意为“花费时间做某事”。答案CThey spent two days on their n知识点十proud 的用法和搭配教材原文My brother is in the school tennis teamIm very proud of him!我哥哥是校网球队队员我为他感到非常骄傲!本句

17、中的proud意为“感到自豪的;感到骄傲的”,可构成be proud of短语,意为“为感到骄傲”。They are very proud of their daughter.他们为他们的女儿感到非常骄傲。拓展延伸be proud of和take pride in是同义表达,两者都表示“为感到骄傲”。pride为名词,意为“自豪;骄傲”,注意它们所搭配的介词不同。知识点十proud 的用法和搭配We take pride in/are proud of our great motherland.我们为我们伟大的祖国感到骄傲。例(2018浙江嘉兴七校期中联考)根据首字母提示写出所缺的单词My p

18、arents are p of me because I saved a little boy.解析本题考查proud的写法。根据题干中的“因为我救了一个小男孩”可推断,我的父母为我感到自豪,故所缺的词是proud。答案proudWe take pride in/are proud of 知识点十一nervous 的用法教材原文I feel nervous when I speak Chinese.我说中文时觉得紧张nervous作形容词,意为“焦虑不安的;神经紧张的”。We feel nervous because of tomorrows exam.我们因为明天的考试而感到紧张。知识点十一

19、nervous 的用法例(2017陕西西安西北大学附中期中)Linda is shy. She always feelswhen she speaks in front of people.A.relaxedB.nervousC.properD.clear解析根据题干中的“琳达很害羞”可推断,她在人前说话的时候总是觉得很紧张,故所缺的词是nervous。答案B例(2017陕西西安西北大学附中期中)Linda i知识点十二“特殊疑问词+动词不定式”的结构教材原文Im always sorry when I dont know how to do things in the right way.当

20、我不知道怎样以正确的方式做事时,我总是很难过本句中的how to do things是“特殊疑问词+动词不定式”的结构,作know的宾语。Can you tell me how to use the camera?你能告诉我怎样使用这个照相机吗?知识点十二“特殊疑问词+动词不定式”的结构We are talking about how to get there.=We are talking about how we can get there.我们正在讨论怎样到达那里。拓展延伸拓展延伸例(2018山东济南长清区期中)改为同义句I want to learn about how I can c

21、are for animals.I want to learn about how for animals.解析本题考查“how to do sth.”和how引导的宾语从句之间的同义转换。答案to care 例(2018山东济南长清区期中)改为同义句解析本题知识点十三Its+adj.+for sb.+to do sth.的句式教材原文It is polite for people to say “thank you” very often, even to their family members. 对人们来说,经常说“谢谢你”是有礼貌的,甚至对他们的家庭成员说也是一样。本句是“Its+ad

22、j.+for sb.+to do sth.”的句式。其中It是形式主语,真正的主语是其后的动词不定式。Its important for us to learn English well. 对我们来说学好英语是很重要的。Unit 3Language in use知识点十三Its+adj.+for sb.+to Its+adj.+for sb.+to do sth.该句式常用于表示事物的特征、特点。形容词常为表示客观形式的形容词,如easy、hard、difficult、interesting、impossible等Its+adj.+of sb.+to do sth.该句式常用于表示人物的性格、

23、品德。形容词常为表示主观感情或态度的形容词,如good、kind、nice、clever、foolish等辨析“Its+adj.+for sb.+to do sth.”和“Its+adj.+of sb.+to do sth.”的区别Its+adj.+for sb.+to do sth.该句Its very hard for him to learn two languages. 对他来说学两门语言是很难的。 Its very nice of you to help me. 你来帮助我,你真是太好了。易错提醒巧辨for 与of:用介词后面的代词或名词作主语,用介词前边的形容词作表语,造个句子。如

24、果道理上通顺则用of,不通顺则用for。Its kind of you to help me with my English. 你帮我学英语,你真是太好了。You are kind to help me with my English. (通顺)Its very hard for him to lear例(2017湖南益阳中考) Its necessary for youthe classroom clean, class.A.keepB.keepingC.to keep解析根据本题语境可知,对你们来说,保持教室的干净是必要的。根据“Its+adj.+for sb.+to do sth.”的句

25、式结构可知答案为C。答案C例(2017湖南益阳中考) Its necessa表示感觉和知觉的系动词本模块的语法重点是表示感觉和知觉的系动词,即“感官动词”。常见的感官动词有:The old man sitting on the park bench looks familiar.坐在公园长凳上的那个老人看上去很面熟。感官动词含义对应的感觉器官look看起来eye眼睛sound听起来ear耳朵smell闻起来nose鼻子taste尝起来mouth嘴巴feel摸起来hand手表示感觉和知觉的系动词本模块的语法重点是表示感觉和知觉的系动The piece of music sounds very b

26、eautiful.那首乐曲听起来很动听。The chocolate cake smells sweet.这块巧克力蛋糕闻起来很香。The chicken soup tastes delicious.鸡汤尝起来很美味。The stone feels hard.这块石头摸起来很硬。The piece of music sounds very例(2018福建中考)Do you enjoy Chinese Folk Songs?Yes, the folk songsnice.A.soundB.smellC.look解析本题考查感官动词的用法。主语是the folk songs“民歌”,由此可知对应的感

27、官动词是sound“听起来”,故答案为A。答案A例(2018福建中考)Do you enjoy Cspend、take、cost与payShe spent two days (in) finishing making the model plane.她花了两天时间做好了那架飞机模型。She spent 100 yuan on a new dress.她花100元买了一条新连衣裙。spend可以表示“花时间”,也可以表示“花钱”,主语是人。常见句型是“sb. spend(s) some time/money on sth./doing sth.”take常用于表示“花时间”。常见句型是“It t

28、akes sb. some time to do sth.”cost常用于表示“花钱”,主语多是事或物。常见句型是“sth. cost(s) sb. some money”pay常用于表示“花钱”,主语是人,和介词for搭配。常见句型是“sb. pay(s) some money for sth.”spend、take、cost与payShe spent tIt took me half an hour to clean the classroom.我花了半个小时打扫教室。The bike cost me 500 yuan.那辆自行车花了我500元。You need to pay 200 yu

29、an for the books.你需要为那些书支付200元。It took me half an hour to cle例(2017四川凉山州中考)Wow, your sweater is very beautiful!Thank you. I bought it two days ago. Itme$50.A.tookB.costC.paidD.spent解析根据本题语境可知,那件毛衣花了我50美元,第二个It指代的是“我的毛衣”,根据“sth. cost(s) sb. some money”的结构可知答案为B。答案B例(2017四川凉山州中考)Wow, your sModule2 Exp

30、eriences知识点课件Module2 Experiences知识点课件外研版八年级下英语各单元知识点课件Unit 1Ive also entered lots of speaking competitions.知识点一competition的用法教材原文Im entering a competition.我正在报名参加一个比赛。competition作名词,意为“比赛;竞争”。enter a competition意为“(报名)参加比赛”。I havent entered any singing competitions before.我以前没有参加过任何唱歌比赛。拓展延伸同根词:comp

31、ete v.比赛;竞争I dont want to compete with anyone. 我不想和任何人竞争。Unit 1Ive also entered lots 例(2017天津蓟州区期中) Tom has got a camera in the school photo.A.competitionB.conditionC.environmentD.message解析四个选项的含义分别是:competition比赛;condition状况;environ-ment环境;message口信。结合本题语境可知,汤姆在学校摄影比赛中获得了一台照相机,故答案为A。答案A例(2017天津蓟州区期

32、中) Tom has got知识点二现在完成时的用法教材原文Have you ever won any prizes before? 你以前得过奖吗?本句是现在完成时的一般疑问句,结构为“Have/Has+主语+过去分词+其他?”。它有两种答语形式,肯定答语是“Yes, 主语+have/has.”,否定答语是“No, 主语+havent/hasnt.”。Have you watered the flowers? 你给花浇过水了吗?Yes, I have. 是的,我浇过了。拓展延伸现在完成时用来描述过去发生的动作对现在造成的影响或结果,它的基本结构是“have/has+过去分词”。We have

33、 already cleaned the classroom. Now its clean. 我们已经打扫过教室了。现在它很干净。知识点二现在完成时的用法例(2018内蒙古呼和浩特十一中三月月考)句型转换She read the book last week.(用ever改为现在完成时态)Sheeverthe book.解析现在完成时的结构是“have/has+过去分词”。主语是She,第一空要用has;第二空要用read的过去分词。答案has;read例(2018内蒙古呼和浩特十一中三月月考)句型转换解知识点三dream的用法教材原文Ive always wanted to go on a

34、dream holiday. 我一直以来都想有个梦想中的假期。dream可以作名词,意为“梦;梦想”;也可以作动词,意为“做梦;梦见;梦想”。It was only a dream, after all. 这终究只是一场梦。He dreams of being a pilot. 他梦想成为一名飞行员。知识点三dream的用法拓展延伸短语:dream of/about 梦想The boy is always dreaming of traveling around the world. 那个男孩一直梦想环游世界。例(2018四川德阳中考)根据汉语意思写单词If you work hard, yo

35、ur(梦想)can come true. 解析本题考查dream的写法。句意:如果你努力工作,你的梦想就能实现。答案dream拓展延伸短语:dream of/about 梦想例知识点四afford的用法教材原文But I cant afford it. 但是我负担不起。afford作动词,意为“(有财力)买得起;付得起;承担得起”。In the past, my parents couldnt even afford a new refrigerator. 在过去,我父母甚至买不起一台新冰箱。拓展延伸短语:afford to do sth. 负担得起做某事We cant afford to g

36、o abroad this summer.今年夏天我们没有足够的钱去国外。知识点四afford的用法例(2018广西柳州柳江区期中)根据汉语意思写单词Bill goes to work by bus because he cant(买得起)a car now. 解析本题考查afford的写法。句意:比尔乘公共汽车去上班,因为他现在买不起汽车。答案afford 例(2018广西柳州柳江区期中)根据汉语意思写单词解知识点五make up的短语搭配教材原文You can make it up.你可以编(一个故事)。本句中的make up是固定搭配,意为“创作;编写”。The writer is go

37、od at making up stories.那位作家擅长编故事。归纳总结make up还有如下含义:组成;构成Six women and nineteen men make up the committee.六位妇女和十九位男士组成了这个委员会。化妆;上妆It took her more than an hour to make herself up.她花了一个多小时打扮。知识点五make up的短语搭配组成;构成Six w例(2018天津滨海新区期末)根据汉语意思完成句子那个小男孩喜欢编故事。The little boy likes stories.解析本题考查make up的短语搭配。

38、make up表示“创作;编写”;like doing sth.意为“喜欢做某事”,故答案为making up。答案making up例(2018天津滨海新区期末)根据汉语意思完成句子解知识点六invite sb. to do sth.的用法教材原文I hope I will win,then I will invite you to come with me.我希望我能赢,然后我会邀请你和我一起去。invite sb. to do sth.意为“邀请某人做某事”。She invited me to play chess with her.她邀请我和她一起下国际象棋。归纳延伸派生词:invit

39、ation n. 邀请;请柬Thank you for your invitation. 谢谢你的邀请。知识点六invite sb. to do sth.的例(2018广东佛山顺德区第14周教研联盟测试)Tony hopes he will win the writing competition, then he will invite Sally around the world with him.A.goesB.to goC.goingD.went解析根据invite sb. to do sth.“邀请某人做某事”的固定搭配可知答案为B。答案B例(2018广东佛山顺德区第14周教研联盟测试

40、)To知识点七过去分词(短语)作后置定语时的用法教材原文The first prize is only the book called Around the World in 80 Days! 一等奖仅仅是一本名叫八十天环游地球的书!本句中的called Around the World in 80 Days是过去分词短语,作后置定语修饰the book。此处called表示“被称为”。当过去分词(短语)作后置定语时,与所修饰的词之间是被动关系。It is a bridge built by the local villagers.这是一座由当地村民建造的桥。知识点七过去分词(短语)作后置定语

41、时的用法例用所给词的适当形式填空Have you read the novel(call)The Old Man and the Sea? 解析本题考查过去分词短语作后置定语时的用法。句意:你看过那本名叫老人与海的小说了吗?此处所缺的词是called“被称为;被叫作”。答案called例用所给词的适当形式填空解析本题考查过去分词短语作后置定Unit 2They have seen the Pyramids.知识点八“one of the+形容词最高级+可数名词复数”的结构教材原文At the moment,Mike and Clare are in Cairo in Egypt,one of

42、the biggest and busiest cities in Africa.目前Mike和Clare在埃及的开罗非洲最大、最繁忙的城市之一。该结构是最高级的常考结构,意为“最的之一”,注意该结构中要用可数名词的复数形式。I think basketball is one of the most exciting sports in the world. 我觉得篮球运动是世界上最令人兴奋的运动之一。Unit 2They have seen the Pyra例(2018湖南邵阳中考)Guangzhou is one of cities in China.A.the biggestB.bigC

43、.bigger解析本题考查含最高级的句式。“one of the+形容词最高级+可数名词的复数”表示“最的之一”。答案A例(2018湖南邵阳中考)Guangzhou is 知识点九move的用法教材原文They moved here with their parents two years ago.他们两年前和父母一起搬到了这里。move作动词,意为“搬家”,此时move是不及物动词。They are going to move to London.他们打算搬到伦敦去。归纳总结move还有如下含义和用法:v.移动;改变的位置Could you please move your bike? 请你

44、移动一下你的自行车,好吗?v.使感动I was moved by her story.我被她的故事感动了。知识点九move的用法v.移动;改变的位置Cou例根据首字母提示写出所缺的单词They didnt want to live in the city.They wanted to mto a small village.解析本题考查move的写法。句意:他们不想在城市里住了。他们想搬到一个小村庄去。故填move。答案move例根据首字母提示写出所缺的单词解析本题考查move的写法知识点十send sb. to do sth.的搭配教材原文The company has offices in

45、 many countries, and it has sent Pe-ter to work in Germany, France and China before.该公司在很多国家都有办事处,彼得曾被派往德国、法国和中国工作过。本句中的sent Peter to work.属于send sb. to do sth.的结构,表示“派遣某人去做某事”,其中send表示“派遣;打发”。My father sent me to post the letter. 我爸爸派我去寄信。知识点十send sb. to do sth.的搭配 拓展延伸有些动词后要加动词不定式作宾语补足语。常见的此类搭配有:

46、拓展延伸有些动词后要加动词不定式作宾语补足语。常见的此例根据汉语意思完成句子老板派我爸爸去纽约出差了。The boss sent my father to New York on business.解析本题考查send sb. to do sth.的固定搭配。答案to go例根据汉语意思完成句子解析本题考查send sb. to知识点十一have been to的用法教材原文They have been to many interesting places.他们去过很多有趣的地方。have been to表示“去过某地”,强调去过某地,且已经回来。They have been to Sanya

47、 three times. 他们去过三亚三次了。辨析have been to、have gone to和have been in have been to已经去过某地,现在已经回来have gone to已经去某地了,现在仍然在某地或在途中have been in表示“在某地待了多长时间”,可以和时间段搭配知识点十一have been to的用法have bI have been to Nanjing twice.我已经去过南京两次了。My father isnt at home.He has gone to London.我爸爸不在家。他去伦敦了。They have been in the

48、village for five days. 他们在那个村庄待了五天了。I have been to Nanjing twice.例(2017广东汕头潮南区五月月考)Hello! Could I speak to Lily?Sorry, she is not in. SheShanghai.A.have been toB.have gone toC.has been toD.has gone to解析先根据主语She可排除A和B;根据本题语境可知,莉莉不在家,她去上海了,目前还没有回来,故has gone to符合题意。答案 D例(2017广东汕头潮南区五月月考)Hello! 知识点十二so

49、far的用法教材原文So far they have learnt to speak German,French,Chinese and Arabic.到目前为止,他们已经学会了说德语、法语、汉语和阿拉伯语。so far表示“到目前为止”,是现在完成时的时间标志词。We have learned about 3,000 words so far.到目前为止,我们已经学了大约3,000个单词。知识点十二so far的用法例(2018山东潍坊滨海开发区期中)用所给词的适当形式填空 Mo Yan (write)many books so far.解析本题考查动词时态。根据so far可知要用现在完成

50、时,故答案为has written。答案has written例(2018山东潍坊滨海开发区期中)用所给词的适当形知识点十三miss的用法教材原文They have friends all over the world, but they also miss their friends in the US.他们在世界各地都有朋友,但他们也想念他们在美国的朋友。miss是动词,意为“想念;怀念;惦念”,是及物动词。I missed you very much while you were away.你不在的时候我非常想念你。归纳总结miss作动词时还有如下含义和用法:未击中;未抓住He shot

51、 at the bird but missed.他朝那只鸟射击但是未打中。错过;未赶上He got up late and missed the train.他起晚了,错过了火车。知识点十三miss的用法未击中;未抓住He shot例(2016湖北孝感中考)Dontthe chance when you can catch it, or you will regret.A.guessB.missC.rememberD.allow解析四个选项的含义分别是:guess猜测;miss错过;remember记得;allow允许。结合本题语境可知选B。答案B例(2016湖北孝感中考)Dontth知识点十

52、四count down的用法教材原文They are counting down the days.他们正在倒计时。count down是固定搭配,意为“倒数,倒计时”。其中count是动词,意为“数;清点”。We are counting down the days to the end of this tour.我们这次旅行已经在倒计时了,快要结束了。知识点十四count down的用法例(2017天津红桥区期中) 根据汉语意思完成句子在开始之前,在心里倒数十秒。 10 seconds in your heart before it starts.解析本题考查count down的短语搭配

53、。答案Count down例(2017天津红桥区期中) 根据汉语意思完成句子解Unit 3Language in use知识点十五before 引导的时间状语从句教材原文They could only spend about fifteen minutes on the summit before they had to come down.在他们不得不下来之前,他们只在山顶待了大约十五分钟。本句是含时间状语从句的主从复合句,主句是They could only spend about fifteen minutes on the summit,从句是before they had to co

54、me down,before是连词,意为“在之前”。You should turn off the lights before you leave the room.在你离开房间之前,你应该把灯都关了。Unit 3Language in use知识点十五例根据汉语意思完成句子在你离开北京之前,请给我打个电话。Please give me a call Beijing.解析本题考查before引导时间状语从句的用法。答案before you leave例根据汉语意思完成句子解析本题考查before引导时间状现在完成时(1)1.现在完成时的定义现在完成时表示过去发生或已经完成的动作对现在造成的影响

55、,也可表示过去已经开始,一直延续到现在的动作或状态。They have already swept the floor.他们已经扫过地了。I have been a teacher for two years.我已经当老师两年了。2.现在完成时的构成肯定句主语+have/has+过去分词+其他否定句主语+havent/hasnt+过去分词+其他一般疑问句Have/Has+主语+过去分词+其他肯定答语Yes,主语+have/has否定答语No,主语+havent/hasnt现在完成时(1)肯定句主语+have/has+过去分词+其他I have cleaned the room.我已经打扫过房间

56、了。I havent cleaned the room.我没有打扫房间。Have you cleaned the room?你打扫房间了吗?Yes,I have.是的,我打扫过了。No,I havent.不,我没有打扫。I have cleaned the room.我已经打扫过例(2017安徽合肥瑶海区期中)Have youyour homework, Tom?Yes, Mum. Iit an hour ago.A.finish; finishedB.finished; finishedC.finished; have finishedD.finish; finish解析根据开头处的Have

57、可知,问句的时态是现在完成时,故第一空要用过去分词finished;根据an hour ago可知答语时态是一般过去时,故第二空要用过去式finished。答案B例(2017安徽合肥瑶海区期中)Have you3. 过去分词的变化 大多数动词的过去分词的变化是规则的,即以-ed结尾。还有一部分动词的过去分词变化是不规则的。常见的有:原形过去式过去分词bewas;werebeeneatateeatengivegavegivenseesawseenthinkthoughtthoughtdrinkdrankdrunkflyflewflownreadreadreadtaketooktakenwrite

58、wrotewritten3. 过去分词的变化原形过去式过去分词bewas;werebwin与beat Which side won the football match? 哪队赢了足球赛?We beat them by score 2 to 1.我们以2比1战胜了他们。win意为“赢得;获胜”,表示“赢得”比赛、竞赛、奖牌、奖杯等,通常和match、competition、game、medal、prize等搭配beat意为“打败;战胜”,表示“打败”对手,和表示人、球队、对手等的词搭配win与beat Which side won the f例(2018广西柳州期末)The cute mous

59、e alwaysthe cat in the car-toon Tom and Jerry.A.winsB.beatsC.beat解析本题考查win和beat的区别。主语是The cute mouse,它属于第三人称单数,先排除C;句意:在动画片猫和老鼠中,那只可爱的老鼠总是能够打败那只猫。表示“打败”,再根据后面的the cat可知,所缺的词是beats。答案B例(2018广西柳州期末)The cute mousfor example与such as Many great men have risen from poverty, for example, Lincoln. 许多伟人从贫困中崛

60、起,例如林肯。I like to eat different kinds of fruits, such as apples, pears, and bananas. 我喜欢吃不同种类的水果,比如苹果、梨和香蕉。for example同for instance,用来举例说明某一论点或情况,一般只举同类人或物中的“一个”为例such as表示“比如;例如”,一般用于列举同类人或事物中的几个例子for example与such as Many grea例(2018天津蓟州区第四联合学区第二次月考)根据汉语意思完成句子 许多学生有爱好,例如读书和绘画。Many students have hobbi