《2025年创新设计高中英语必修第一册北师大版》

4. let sb down 使失望，辜负(别人的信任或期望)
教材原文 Don't let us down, Paul. It's your time to shine.
别让我们失望，保罗。你发光发亮的时刻到了。
感知 语言先输入
① I believe I can be a good volunteer and I won't let you down. (申请信)
② Then she let out laughter and hugged me, kissing me on both cheeks. (动作描写)
记牢 知识再梳理
let out 发出(声音)；放走；泄露
let alone 更不用说
let sb alone 不要管，不打扰某人
let go of 放开；释放
运用 用 let 短语填空
① Only three months old, the baby can't even sit up yet, alone walk!
② To be frank, I didn't intend to let her down but I failed again.
③ Suddenly, the girl who was reading a novel let out a cry, which made her mother worried.
④ Let go of things you can't change; sometimes it's necessary to give up something.

答案： ①alone ②let;down ③let out ④Let go of

5. pay off 取得成功；奏效；达到目的
教材原文 And clearly, all the extra hours that he'd spent practising alone paid off.
显然，他所有独自练习的额外时间都得到了回报。
感知 语言先输入
① You should study hard and your efforts will pay off sooner or later. （建议信）
② Last winter vacation, my parents and I paid a visit to Sanxingdui Museum. （活动介绍）
③ After a bit, she got up, paid for her meal at the counter, and left. （动作描写）
记牢 知识再梳理
pay sth off 付清，偿清
pay sb off 付清工资后解雇；遣散
pay sb back 偿还；报答；报复
pay for 付款；为……付出代价
pay a visit to 拜访，访问
运用 用 pay 短语填空/完成句子
① Working day and night, the wife paid off all the debts.
② After graduation, she worked to help her sisters and brothers pay for their schooling.
③ Borrowing money from friends wouldn't affect the friendship as long as those who borrow money remember to pay back as soon as possible.
④ As a proverb goes, "Where there is a will, there is a way." Our efforts will pay off sooner or later.
正如谚语所说，“有志者，事竟成。”我们的努力早晚会得到回报。

答案： ①paid off ②pay for ③pay back ④will pay off sooner or later

6. keep up with 跟上，保持同步；和（朋友）保持联系
教材原文 The other team just couldn't keep up with his energy and speed.
另一支球队根本跟不上他的精力和速度。
感知 语言先输入
① We should study hard and keep up with the times. （演讲稿）
② As long as you can keep away from computer games, you won't be addicted to them. （建议信）
记牢 知识再梳理
keep off 让开；不接近
keep away from 远离；不接触
keep in touch with 与……保持联系
keep pace with 与……并驾齐驱/保持同步
运用 用 keep 短语填空/完成句子
① I tried to keep in touch with my classmates after graduating from senior secondary school.
② They lit a fire to keep off the wild animals.
③ I have always been keeping up with the English newspapers, which is of great help to me in English learning. （短文投稿）
我一直跟进了解英文报纸，这对我的英语学习很有帮助。

答案： ①keep in touch with ②keep off ③keeping up with the English newspapers