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高中英语必修三知识点：高一英语必修三Unit2第一课时（人教版）
1.He is on a diet to loose weight. 他正在节食以减肥。
2. put sb. on a diet 使某人节食
The doctor put me on a very strict diet. 医生严格限制我的饮食。
3. out of curiosity 出于好奇
satisfy one’s curiosity 满足某人的好奇心
Just to satisfy my curiosity/ out of curiosity, how much did you pay for your car? 我只是出于好奇，请问你买这辆车花了多少钱？
4. be curious about sth. 对……感到好奇
They were very curious about the people living upstairs. 他们对住在楼上的人感到很好奇。
5. at a discount 打折扣
They were selling everything at a discount. 他们销售的所有商品都打折。
6. Do you give any discount if I buy a whole case of wine? 如果我买一整箱酒你们打折吗？
7. lose weight 减肥，减轻体重
Put on/ gain weight 体重增加 The best way to lose weight is to exercise more. 减肥最好的方法是多运动。
8. get away with （做坏事）不受惩罚；
偷携某物潜逃，偷走
He was lucky to get away with only a fine. 他算万幸，只被罚款了事。
Thieves got away with computer equipment worth $30,000. 盗贼偷走了价值3万美元的项链。
9. win… back 赢回；重新获得
How can I win back her trust? 我怎样才能重新赢得她的信任？
The party is struggling to win back voters. 这个政党正尽力把选民争取回来。
10. have sb. doing sth. 允许、容忍某人做某事
（常用于否定句中） He cannot have his daughter arriving home late. 他不能容忍女儿晚回家。
今天就和大家就分享到这，祝愿各位愉快！