②I know how busy you must be and naturally I wouldn't want to________ too much of your time.

　　③A British newspaper says British Airways plan to ________ Trans World Airways.

　　④If you do not________ what you said, I shall not speak to you again.

　　2 lose sight of　看不见

　　catch/get sight of　看见

　　at first sight

　　乍一看，第一眼看见

　　at the sight of

　　一看见……就……

　　in/within sight在看得见的范围内

　　out of sight

　　看不见

　　【活学活用】

　　(1)[2015·浙江卷·阅读C] In a very real sense, light pollution causes us to lose sight of our true place in the universe.

　　事实上，光污染导致我们看不到自己在宇宙中真正的位置。

　　(2)用sight短语的适当形式填空。

　　①The little child danced around her ______________ his mother.

　　②Breakthroughs in our country's project of going to the moon are ____________ this year.

　　③Standing at the top of the hill, you can ____________________ the whole city.

　　3 speed up　(使)加速

　　at a speed of以……速度

　　at high/low/full/top speed

　　以高/低/全/最高速度

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