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四年级下知识点总结M1 Unit 1Crisps 薯条(复数)Potatoes 土豆(复数)名词变复数有7条规则1. 一般直接加s2. 以s, sh, ch, x, 结尾的要加es.3. 以o结尾的直接加s, 除了negro, hero, potato,tomato 有es.4. 以辅音加y结尾的,把y变i加es以元音加y结尾的,直接加s.5. 以f, fe 结尾的去掉f, fe变ves. Wolf-wolves6. 不变的,中国人爱吃鱼fish羊sheep鹿deer. 中日不变,英法变,其他s加后面。7. 特殊情况特殊记。Foot-feet tooth-teeth Mousemice childchildren Unit2重点短语:Wait for sb/sth. 等待Wear the hat! 戴上帽子Wear the glasses!戴上眼镜!Touch the Machines. 触摸机器。Dont touch anything. 不要碰任何东西。Walk on the grass.Play ball games.Write in the books!口诀巧计祈使句祈使句,祈使句,请求、命令或建议。主语是you常省去,动词原形开头记。否定形式要注意,句首要把Dont加。要讲客气用please,句首句末没关系。单数第三人称当主语是he,she,it 单个人,单个物时,后面的动词要变三形式。动词的单三形式变化1.直接加s cut-cuts put-puts2.以s.sh,ch,x,o结尾的要加es. Wash-washes touch-touches3.以辅音加y结尾的,把y变i加es, 以元音加y结尾的,直接加s. play-plays.M2 Unit 1be good for 对有益be good at 擅长于powerful强大的 perfect完美的cheap 便宜的 expensive 昂贵的screen 屏幕 take it to school 带到学校Unit 2It costs one thousand eight hundred yuan. 它价值1800元。Costs (cost 的单三形式)价值数字的表述表示数字时,thousand, hundred不可变为复数Yuan 人民币,不可变为复数Dollardollars 美元M3Unit 1一般过去时的用法:一般过去时表示过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为;过去主语所具备的能力和性格。常见的时间状语有:once upon a time, yesterday, just now, last year/ last day/ in the old days基本结构:主语+动词过去式+其他;否定形式was/were+not;在行为动词前加didnt,同时还原行为动词;一般疑问句Did+主语+do+其他。一般过去时肯定句的过去式。规则动词加ed,不规则的必须记。否定形式疑问句,没有be加did。如把did加在前,动词也要还原形。动词变过去式1. 一般情况直接加ed wash-washed2. 重读闭音节(辅元辅结构)双写尾字母再加ed 3. 以辅音加y结尾,把y变i加ed.以元音加y结尾,直接加ed4. 特殊情况特殊记。重点短语:look after 照看=take care ofrun to 跑到the next day 第二天Dont tell lies! 不要说谎!Broke the door and ran away. 夺门而逃Went into a shop 走进一个商店本课出现的动词过去式looklooked 看 is/ amwas是runran 跑 shoutshouted喊laughlaughed 大笑 are-were是come-came 来 dodid 做say-said 说 eat-ate 吃buybought 买 seesaw看见scare-scared 害怕 break-broke打破playplayed 玩M4Unit 1一般过去时动词变化及句型转换It was Chinese music.It wasnt Chinese music.Was it Chinese music?(变否定很容易,be 后not 加进去,变疑问Be 提前,any 要把some 替。)此口诀只用于有be动词的句型,那没有be动词的怎么办呢?Dad played the erhu.Did Dad play the erhu?Dad didnt play the erhu. (乐器前面要加the)What did Dad play?(没有be 要把did 加,如把did加在前,动词也要还原形。)Unit 2Look like 看起来像 (looks like 单三形式)Listen to 听.Go to 去.Play in the concert 在音乐会上演奏Chinese instrument 中国乐器Violin 小提琴Guitar 吉他At the end 最后What did he play?He playedI was very nervous before the concert. 我在演奏前非常紧张。Where did Daming go? 大明去了哪?When did he go? 他什么时候去的?How did he go there? 他怎么去的那里?What did he do there? 他在那里做了什么?M5现在进行时What are you doing? 你正在做什么呢?Whats happening now?现在正发生什么事情?Its a surprise party for Ms Smart and my mother. 对于斯玛特夫人和我妈妈来说,这是一个出人意料的聚会。Mothers Day 母亲节现在进行时口诀现在进行时,动作正发生,重点抓动词,动词前面遥控器be, 动词后面ing. Now, look! Listen! 是标记,三位一体别忘记。现在进行时结构主语+be+动词ing.I am+动词ing.We are+动词ing.You are+动词ingHe/ She/ It is+动词ingThey are+动词ingIts Mothers Day today.I amfor my mother. 此句中for是介词,意思是“给,为”What are you doing on Mothers Day?母亲节那天你正在做什么?Teachers DayFathers Day动词变现在分词:1. 一般情况直接加ing2. 重读辅元辅结构,双写尾字母加ing3. 以哑e结尾的,去e加ing.M6一般将来时Will 表示将来,后接动词原形。主语+will+动词原形+其他/ 计划,打算Ill draw the pictures. 我会画画。What will you do? 你将会做什么?Lets make an English newspaper! 让我们来制作一张英文报纸Ill write the reports. 我会写报道。Im good at English. 我很擅长英文。Stick the newspaper together. 把报纸粘贴在一起。1. Lets + 动原 /让我们2. There be 句型/ 在某地有某物There be 句型不一般,主语跟在be后面Be可变为is, are. There永远是老大。单数主语用is. 复数主语要用are.如若遇到并列主语,就近原则就可以。M7主系表结构的句型转换例: It is. She is He is. You are This is.This is space. 这是太空。The sun is very big. 太阳是独一无二的,所以要用the.This planet is near to the sun. 这颗行星离太阳很近。This planet is far from the sun. 这颗行星离太阳很远。ring 光环, 戒指Some nights, theres no moon at all. 有些晚上,根本就没有月亮。M81. 会用where对地点提问,并会描述这一地点。Where对地点提问,在哪里?Where is Los Angeles?Los Angeles is in the west of America.In the east of在。的东边In the west of 在的西边In the north of 在的北边In the south of 在的南边Maybe 也许。2. 动词单三的变化Does he live in New York? 他是住在纽约吗?Yes, he does. 是的,他是。He lives in the east of America.他住在美国的东部。当主语是he, she, it, 单个人,单个物时,后面的动词要用单三形式。动词变单三的规则:1. 一般情况直接加s.2. 以s, sh, ch, x, o结尾的单词要加es.3.以辅音加y结尾的,把y变i加es, 以元音加y结尾的,直接加s. play-plays.一般现在时口诀:一般现在时态中,动词一般用原形。表述事实讲真理,习惯动作常发生。特别注意单数三,三单s(es)随动行。若变一般疑问句,得看句型是哪种,如若有be句中现,be放句首可完成。若遇实义动词句,do或does莫忘用。疑问否定来光顾,三单之前加does, 不是单三就加do.Do或does加在前,动词形式要还原。Cousin 党(表)兄弟姐妹The capital of America is Wshington, D.C.美国的首都是华盛顿。Washington, D.C. is in the east of America. 华盛顿在美国东部。Canada is to the north of America. 加拿大在美国的北部。Mexico is to the south. 墨西哥在南部。In the east of 在东部 (包含在内部,一个鸡蛋和蛋黄的关系)To the east of 在东部(在外部,两个鸡蛋的关系)On the east of 在东部(名部接壤,两个挨着的鸡蛋的关系)变否定很容易,be,do,does后not加进去。变疑问也简单,be,do,does 放在主语前。Do或does加在前,动词形式要还原。Library 图书馆Bus station 公共汽车站M91. 一般现在时的用法(一般现在时口诀如M8)2. why do you? 为什么你。?Because. 因为. (回答由why提出的问题)What language do they speak there? 那里的人说什么语言They speak English. 他们说英语。Why do you love kangaroos and koalas? 为什么你喜爱袋鼠和树熊?Because they are very very cute. 因为他们非常非常可爱。3. Australia 澳大利亚 Australian 澳大利亚人,澳大利亚的 America 美国 American 美国人,美国的。Live in 居住于Jump on their back legs. 用后腿跳。For 为, 给M101. 一般将来时 be going to Be going to加动原,计划,准备和打算。Be要根据人称变,表示将来时。Be going to=will ( 只要它当作是一个表示将来的符号就可以简单些)What are you going to do this summer? 这个夏天你打算做什么?Im going to go back to England. 我打算去英格兰。=I will go back to England.Im not going to go back to England.(否定句be 后not 加进去)=I will not ( wont) go back to England.Are you going to go back to England? (变疑问be提前)Will you go back to England?What about you? 你呢?Well send you a postcard from England. 我们会从英国寄给你名信片的。Ill send you a postcard from China. 我们会从中国给你寄名信片。2. 重点句型运用What are you going to do? 你准备做什么?What will you do?Where are you going to go? 你打算去哪?Where will you go?Where is she going to go? 她打算去哪?Where will she go?Shes going to go to Qingdao. 她打算去青岛。She will go to Qingdao.且记用will 问,用will答、用be going to问,用be going to答。Review1. Ive got long hair.我有长头发。 Have got 有。2. It costs fifty six yuan.3. Which city is far from us?Which city is near to us?Which city is to the east of us?Which city is to the west of us?Which city is to the north of us?Which city is to the south of us?4. What will you do in the holiday? 假期你打算做什么?I will visit my grandparents. 我会去拜访我的祖父母。
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