Unit 1 How can we become good learners? Language points 1. I study by working with a group. 我通过小组活动来学习。 by作为介词，用法很多。请仔细观察下面的例句，分析by的用法，然后补全结论部分所缺的内容。【例句】1) Come and sit by us.2) Peter goes to work by bus every day.3) Tony will come back by 10:00 pm.4) English is spoken by lots of people.5) My brother studies history by working with a group.【结论】1) by可表示位置， “在旁边”，如句1。也有“从旁边（经过）”之意。2) by可表示交通、传递等的方式，如句2。3) by可表示时间，“到（某时）之前；不迟于”，如句3。4) by可
