1.have a little(some/great/no) difficulty in doing sth做某事有点/些/很大/没有困难 做某事有困难:have trouble in doing sth 做某事没有困难:There is no difficulty in doing sth have difficulty( trouble ,problems, a hard time) in doing sth 2.It is +adj.+to do sth:”做某事是……”, It is difficult to do the job. 3.make sb (sth )do 让sb做sth make sth done sth被做了 make sb/ sth +n. 使sb成为n make him montor make it a success make sb/ sth +adj(+to do sth) makes it possible for you to learn English better.make sb/sth +介词短语 make him in the classroom 让他呆在教4.have (nothing, a lot ) in common 有..相同点In common共同, 共有 In common with… 与…相同Out of common 非同寻常 5.make a difference有影响，使不相同Tell the difference.辨别不同 Make some (no, much, much of a) difference to sb/ Sth.对某人/某物有作用\影响Eg. It makes no difference whether he is rich or not.