Unit 2 After school优学笔记(易错精讲及写作+培优训练)--四年级英语下学期(译林版三起)

译林英语四下优学笔记(易错精讲及写作+培优训练) Unit 2 After school 班级__________ 姓名 ___________ 学号___________ 一、易错精讲 1.have/ has 【用法】①has是have的第三人称单数形式。当主语不是第三人称单数时，我们用have。当主语是第三人称单数时，我们用has。例： I have a dancing lesson at two o'clock. 我两点钟有一节舞蹈课。 He has a football match today.他今天有一场足球比赛。 ②表示否定，且主语不是第三人称单数时，用don't have；主语是第三人称单数时，用 doesn't have。don't和 doesn't是助动词，后面接动词原形。 注：如果肯定句中有some,在否定句中通常要把some替换为any。例： We have some lessons on Tuesday. We don't have any lessons on Tuesday. Helen has some lessons this afternoon. Helen doesn't have any lessons this afternoon. 2. what about/ how about 【用法】what about和how about是常见的省略句型，两者的意思和用法基本相同，一般表示建议、请求、看法、天气和身体等。例： What about Su Hai? = How about Su Hai? 苏海呢？ What about Saturday?= How about Saturday? 周六怎么样？ 3.come/ go 【用法】come表示“来”，go表示“去”。例： come and play table tennis来打乒乓球 go and play basketball去打篮球 4. a swimming lesson一节游泳课 【用法】这类词组在lesson前加动词-ing形式，表示“……课”。例： a dancing lesson一节舞蹈课，a singing lesson一节声乐课 5.play 【用法】(1)表示“玩”，后接“球类、游戏、棋牌类”等名词，后面不用定冠词the。例： play football 踢足球， play basketball打篮球， play games玩游戏，play cards打牌，play chess下棋 (2)表示“演奏”乐器，后接表示乐器的名词，后面要用定冠词the。例： play the piano弹钢琴， play the violin 拉小提琴， (3)play with表示“和……一起玩”。如： play with her sister和她妹妹一起玩， play with a toy plane玩玩具飞机 6. after/ behind 【用法】(1)after通常指时间上、空间上或人、事物的“在……之后”，反义词是before。例： after school(放学后)- before school(上学前) after class(课后)- before class(课前) (2) behind是指在空间上或事物的“在……之后”，反义词是infrontof。例： behind the house(在房子后面) - in front of the house(在房子前面) 2、 写作园地 【点拨】今天是周三，我想去打篮球，可是苏阳要去上游泳课，苏海也要上游泳课。迈克要上一节英语课，他们都很忙。请以“After school”为题写一写，不少于五句话。 【参考范文】 After school It is Wednesday today.I want to play basketball after school. But Su Yang has a swimming lesson. SuHai has a swimming lesson too. Mike has an English lesson. They are very busy(忙). We don'thave any lessons on Sunday. Maybe we can play basketball together on Sunday! 培优训练 一、单词辨音。 ( )1.A.afternoon B. Saturday C.dance D.ask ( )2.A.watch B.wash C.match D.what ( )3.A. Saturday B.purple C. Thursday