动词不定式符号to与介词to的区别 need to do sth 需要做某事 be afraid to do sth 害怕干某事 help sb (to) do sth 帮助某人干某事 want to do sth 想要干什么 enough to do 足以干某事 too…to do sth 太……而不能干某事 try to do sth 尽力干某事 find it +形容词+to do sth 发现干什么是怎么样的（真正宾语） It is +形容词+to do sth .干什么是怎么样的。 （真正主语） 特殊疑问词+to do .---how to increase my reading speed. 背单词的好方法 人教版高一英语单词 关于食物的英语单词 [辨析]  by mistake与by accident by mistake意为“错误地” 例如：I took her umbrella by mistake last night because they are the same style． 昨晚我错拿了她的雨伞，因为它们的样式一样。 by accident意为“偶然地；意外地” The idea came to him by accident． 很偶然地他想到了这个主意。 The customer was happy in the end. 解析：in the end意为 “最后”，相当于“finally”或“at last”。 例如：In the end, they found their teacher. 最后，他们找到了他们的老师。 在市中心走一走walk around the town center 守时是非常重要的It's very important to be on time 当我与朋友见面时，我努力准时 I made an effort to be on time when I meet my friends 我认为让别人久等是不礼貌I think it's impolite to keep others waiting. 让某人一直干某事keep sb.doing sth. 我们从来不会事先未通电话，就去朋友家拜访 We never visit a friend’s house without calling first. 没什么大不了，It's no big deal! get sb to do sth 让某人做某事  be born with the ability to learn 天生具有的学习能力 the best way to do sth= the best way of doing sth 做某事最好的方法 the secret to +名词 …的秘诀 pay attention to +名词/ doing 注意什么/干什么 make a difference to …对……有影响 be/get used to doing 习惯于干什么 make a contribution to 对……有贡献 look forward to doing 期望干什么 [拓展] by the end of & at the end of  at the end of可以指时间，也可指处所，意为“在……尽头，在……结束时”。  例如：At the end of the road, you can see the shop.          在这条路的尽头，你能看到那家商店。  At the end of last term, we had an English exam. 在上学期结束时，我们举行了一次英语测试。   by the end of 用于指时间，意为“到……底(末)为止” 例如：They can finish the work by the end of this month.   到这个月底的时候，他们能完成这项工作。  如果你想理解另一种文化，这麻烦是值得的， It worth the trouble if you want to understand another culture. Section B 在中国用筷子敲打空碗是不礼貌的 In China it’s impolite to use your chopsticks to hit an empty bowl 你不应该把筷子插入你的食物中 You are not supposed to stick your chopsticks into your food 把什么什么插入到stick…into… 用你的筷子指着任何人是不礼貌的。 It's impolite to point at everyone with your chopsticks