4B 知识点总复习易错知识点:1. 介词 at, in, on 的使用方法at 表达在“某时刻或某个时间点”,如 at one o’clock at three fifteenin 表达在“某段时间内”如:在上午 in the morning 在下午 in the afternoon 在晚上 in the evening,不过在夜里 at night一年四季用介词 in 如:in spring, in summeron 表达“详细某一天、某天上午、下午或者晚上”如 on Sunday, on my birthday, on Monday evening2. have 表达“有”,有两种形式 have 和 has。前者用于第一人称(I, we),第二人称(you)和第三人称复数(they),后者用于第三人称单数(he , she , it , the boy ,单个的人名 )或在动词后加 s, 如: (1)She/He/David has a fever/has lunch.(2)She/He/David draws some pictures in the park.(3)He gets up at seven.3. 在 can, can’t, want to, do,don’t, does,doesn't,let 背面加动词原形。如:(1)She/He/David can have lunch at twelve.(2)She/He/David wants to drink some juice.(3)Don ’ t swim in the river, it’s very dangerous.(危险的)(4 ) Let’s go to the playground.4. some 一般用于肯定句和征求他人意见的疑问句中,如:(1)I can see some cakes on the table. 我在桌子上能看到某些蛋糕。(2)Can I have some cakes? 我可以吃些蛋糕吗?(3)Would you like some cakes? 你想要些蛋糕吗?any 一般用于疑问句和否认句中,如:(1)Do you have any cakes? 你有蛋糕吗?(2)Can you see any flowers under the tree ? 在树下你能看见花吗?(3)We don’t have any lessons on Saturday. 我们在周六没有课。5. 星期日至星期六 Sunday Monday Tuesday Wednesday Thursday Friday Saturday注意每周的第一天是星期日,最终一天是星期六书写的时候注意首字母要大写,注意辨别周二 Tuesday 和周四 Thursday,易考易混淆6. 学科类单词 Chinese, Maths, English, Music, Art, Science, PE除了 PE, 其他表达学科类的单词首字母都要大写7. We have Chinese, English, Maths, Art, PE, Music and Science. 多种学科并列时要用逗号隔开(注意不能用顿号),最终两个单词之间要用 and 连接8. It’s time to/for…. ...