她老想成为人们注意的中心。
③A defect of vision prevented him from focusing accurately.
视力上的缺陷使他不能准确对焦。
④You can focus your telescope on that distant television tower.
你可以对着那座远方的电视塔调节望远镜的镜头。
●用法拓展
(1)focus on集中在……上
(2)focus one's attention on sth. 把注意力集中在……上
(3)focus one's thoughts on把思想集中在……上
(4)focus one's efforts on把努力集中在……上
①You should focus your attention on what the teacher is saying.
你应该把注意力集中在老师说的话上。
②He focused his thoughts on something else, so he didn't hear my words.
他把注意力集中在别的事情上,因此没有听到我的话。即境活用单项填空
The beams of light moved across the sky and ________ on the plane.
A.lookedB.focused
C.took on
D.worked
答案:B
10.therefore adv.因此,所以;因而
●归纳延伸
(1)therefore可放在现在分词之前,引导表示结果的状语。
(2)表示结果,类似的还有:thus(因而),consequently(所以),accordingly(因此),as a result(结果)等。
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