句型21：be going toThis afternoon I’m going to buy a Qisu English book. 今天下午我要去买本奇速英语书。

　　句型22：be different fromI think this is different from Chinese names. 我认为这与汉语名字不同。

　　句型23：Welcome（back）to...Welcome back to school！欢迎回到学校！

　　句型24：have fun doingWe’re going to have fun learning and speaking English this term. 这学期我们将兴味盎然地学习和讲英语。

　　句型25：... because ... / ...，so ...I don’t know all your names because this is our first lesson. 因为这是我们的第一节课，所以我并不知道你们所有人的名字。

　　句型26：Why don’t you ... / Why not ...Why don’t you come to school a little earlier?为什么不早点到校呢？

　　句型27：make itLet’s make it half past nine. 让我们定在九点半吧！

　　句型28：have nothing to doThey have nothing to do every day. 他们每天无所事事。

　　句型29：be sure/ be sure of/ about sth. / be sure to do sb.I think so, but I’m not sure. 我想是这样，但不敢确定。I was not sure of / about the way，so I asked someone. 我对于怎么走没有把握，所以我问别人了。

　　句型30：between ... and ...There is a shop between the hospital and the school. 在那家医院和那所学校之间有一家商店。