用assist的适当形式填空

　　After school,I often 　　　our monitor to close the windows as well as turn off the lights in the classroom.She sometimes 　　　us with maths.Of course,with the 　　　of her,some students have made rapid progress.Whenever anyone is in trouble,she is always ready to come to his or her 　　　.

　　3.concentrate vi.&vt.集中;聚集　concentration n.集中;专心

　　【教材原句】 Youll find your colleagues very eager to assist you,so you may be able to concentrate on photography later if youre interested.

　　你会发现你的同事们会热情地帮助你。所以,如果你对摄影感兴趣,以后你可以集中精力去钻研。

　　【观察思考】

　　(1)We should concentrate all our efforts on improving education.

　　我们应该致力于改进教育工作。

　　(2)We should concentrate our attention on work.

　　我们应把注意力集中在工作上。

　　(3)Stop talking and concentrate on your work.别说话,专心工作。

　　(4)His whole mind was concentrated on one thing-how to pass the exam.

　　他专心于一件事--如何通过考试。

　　　　【归纳总结】

　　　　　　　　　　专注于(做)某事

　　　　　　　　　　集中注意力;聚精会神

　　　　　　　　集中力量/注意力于某事