21. turn up

1)出现，露面

2)提高

We invited her to dinner but she didn’t even bother to turn up. 我们请她吃饭她都不露面。I can’t hear the radio very well; could you turn it up a bit? 收音机我听不太清楚，你把声音开大点行吗?

22. break one’s word 失信，食言

Never trust a man who breaks his word easily. 不要相信一个常常食言的人。

23. hold one’s breath (因激动、害怕等)屏住呼吸How long can you hold your breath under the water? 在水下，你能屏息多长时间?

24. out of breath 上气不接下气

Having just taken a long walk, he is out of breath. 刚刚进行了长距离的散步，他气喘吁吁的。

25. take a deep breath 深呼吸

= breathe deeplyIf you feel nervous, please take a deep breath. 如果你感到紧张，请深呼吸。

26. set off

1)动身，出发 (+ for…)

= set out (for…)

2)引爆;燃放

3)引起

We set off at dawn. 我们黎明时动身了。

My father will set off for Shanghai tomorrow morning. 明天早晨我爸爸将动身前往上海。

Boys like setting off fireworks. 男孩喜欢燃放烟花。

That joke set off laughter. 那个笑话引起哄堂大笑。

27. remind +

sb. of sth. 使某人想起某事

sb. to do sth. 提醒某人做某事

sb. that…提醒某人……

Please remind him of the appointment with me. 请提醒他别忘了和我约会。

Please remind me to call him back. 请提醒我给他回个电话。

Remind her that it is dangerous to go out alone at night in this city. 提醒她在这个城市里夜间一个人外出是很危险的。

高一英语必修三知识点总结：Unit 1，愿考生学业有成。更多关于高中知识点请关注精品学习网高中频道