常考，易错知识点整理
1． Too…to/not+adj()+enough to do/so…that Eg:He is too young to go to school.
He is young he can’t go to school He isn’t go to school. 2.Why don’t you join an English club? Why an English club? 3.She used to get up at 6:30.
She to get up at 6:30?() She to get up at 6:30.() She used to get up at 6:30, ? 4.I don’t think he will come, ? Let’s go to the park, ? Don’t open the door, ? Open the door, ?
5.Sixteen-year-olds should be allowed to do sth. 6.How long对 for two days/since 1989 提问
How ofen 对once a week/twice a month/等频度副词提问 How soon对 in two days/in three weeks 提问 Eg:1.She has worked here for four years/since 2007. 2.She will come back in two days. 3.She visits her grandfather once a week. 7.虚拟语气的两个结构：
If he were you,he would go to the party. If he had one hundred,he would buy sth. 8.I don’t know where they will go.(简单句) I don’t know go.
9.You’d better (not go) to the park this afternoon.