高一英语必修3 unit2 知识点

高一英语必修3 unit2 知识点一、教学内容必修3 Unit 2 Healthy eating（一）重点单词（二）重点短语（三）重点句型二、知识精讲（一）重点单词1. diet1) n. 日常饮食、食物Proper diet and exercise are both important for health.适当的饮食和锻炼对健康都很重要。

The doctor advised him to go on a diet to lose weight.医生建议他节食减肥。

No sugar in my coffee please. I am on a diet.请不要给我的咖啡放糖，我在节食。

2）vi. 节食；实施节食疗法Do you think it necessary for me to diet?你认为我有必要节食吗？She’s always dieting but she never seems to lose any weight.她总是在节食，但体重好像并未减少。

2. balance1) vt. 平衡；权衡Try to balance your diet by eating more fruit and less protein.多吃些水果, 少摄入些蛋白质, 使饮食均衡合理。

You have to balance the advantages of living in the country against the disadvantages.你得权衡一下住在乡下的好处和坏处。

2) n. 天平，平衡；余额，余数Try to achieve a better balance between work and play.争取把工作和娱乐更好地结合起来。

I must check my bank balance.我要核对一下我在银行的余额。

Athletes need a good sense of balance.运动员要有良好的平衡感。

I struggled to keep my balance on my new skates.我穿着新溜冰鞋，努力保持平衡。

She cycled round the corner, lost her balance and fell off.她骑车拐弯时失去平衡，摔了下来。

知识拓展：balanced adj. 平衡的；平稳的；和谐的A balanced diet provides nutrition for your body.均衡的饮食使你的身体获得营养。

3. curiosity n. 好奇心Children have a natural curiosity about the world around them.小孩子对他们周围的世界有着天生的好奇心。

I opened the packet just to satisfy my curiosity.我打开包裹只是为了满足我的好奇心。

The letter wasn’t addressed to me but I opened it out of curiosity.那封信不是写给我的，然而我却出于好奇把它拆开了。

Margaret looked at him with curiosity.玛格丽特好奇地望着他。

知识拓展：curious adj. 好奇的curiously adv. 好奇地They were very curious about the people who lived upstairs.他们对于住在楼上的人感到很好奇。

I was curious to find out what she had said.我真的想弄清楚她说了些什么。

It was curious that he didn’t tell anyone.他没有告诉任何人这很奇怪。

4. lie vi. & n. 说谎；谎话，谎言(lied, lied, lying)It’s no wonder that she lied to the court.难怪她对法庭撒了谎。

I wonder why he told a lie to me.我疑惑他为什么对我撒谎。

知识拓展：1) lie vi. 躺、卧、处于(某一位置)，处于某种状态(lay，lain，lying)We were lying on the grass when it began to rain.雨下起来时我们正躺在草坪上。

Her village lay across the river.她住的村子坐落在河对岸。

The newspaper lay open on the table.报纸摊开摆在桌子上。

These machines have lain idle since the factory closed.工厂关闭以来，这些机器就一直闲置。

2）lay vt. 放；搁；下(蛋)；产(卵) (laid，laid，laying)Would you please lay the table for dinner?请你摆好餐具准备吃饭好吗?5. strength n. 强项；优势；力量；力气strengthen v. 加强；增强He pushed against the rock with all his strength.他用尽全力推那块岩石。

It may take a few weeks to build up your strength again.可能需要几个星期你才能恢复体力。

The ability to keep calm is one of her many strengths.能够保持冷静是她的长处之一。

6. consult vt. & vi. 咨询；请教；查阅，参照consultant n. 顾问，咨询师；consultation n. She consulted a lawyer about her divorce.她向律师咨询有关她离婚的事。

The doctor consulted (with) the child’s parents before the operation.手术前医生曾和孩子的家长商议。

You’d better consult the dictionary for the meaning of the word.有关这个单词的意思你最好查阅一下字典。

7. limit1) vt. 限制；限定We must try and limit our cost. 我们必须设法限制我们的开支。

I’ve limited myself to 1, 000 calories a day to try and lose weight. 我为了减肥，限定自己每天摄入1000卡的热量。

2）n. 界限；限度The speed limit on this road is 70 mh.这条路的车速限制是每小时70英里。

There is a limit to the amount of pain we can bear.我们能忍受的疼痛是有限度的。

The EU has set /put strict limits on levels of pollution.欧盟对污染程度作了严格的限制。

I am willing to help you within limits.我愿意有限度地帮助你。

If only the bank would lend money without limit.要是银行能无限制地贷款就好了。

知识拓展：limited adj. 有限（制）的limitless adj. 无限制的The possibilities were almost limitless.可能性几乎是无穷无尽的。

I have only a limited knowledge of the subject.我对这门学科的认识有限。

8. benefit1）v. 使……受益，得益，有益于……The rain will benefit the crops greatly.这场雨对庄稼很有好处。

I have benefited a lot from/by extensive reading.广泛的阅读使我受益匪浅。

We will benefit by / from a holiday.度假对我们有好处。

2) n. 利益，好处It is said Yoga is of great benefit to human health.据说瑜伽对人体健康有很大好处。

He was traveling for the benefit of his health.为了身体健康，他出去旅游了。

知识拓展：beneficial adj. 有益的，有好处的A good diet is beneficial to health.良好的饮食有利于健康。

9. combine vt. & vi. (使)联合；（使）结合The workers combined against the boss.工人们联合起来反对工头。

They combined their efforts to finish the work.他们合力完成了工作。

Some films combine education with/and recreation.有些电影把教育与娱乐结合了起来。

知识拓展：combination n. combined adj.The United States is a combination of 50 states.美利坚合众国由50个洲联合组成。

The firm is working on a new product in combination with several overseas partners.这家公司和几家海外合伙人在联合开发新产品。

It took the combined efforts of both the press and the public to bring about the change in the law.这项法律的变更来自媒体和公众的通力合作。

即学即用：① You could have seen from his face that he had ________ to you.A. liedB. layC. laidD. lain② My mother bought a new skirt for me at a ________ yesterday.A. discountB. bargainC. payD. cost③ The child shows curiosity ________ everything around him.A. ofB. onC. aboutD. at④ She _________ down her book and ________ in bed.A. lay; laidB. laid; layC. lay; layD. laid; laid⑤ He is always talking about abstract principles and can’t _____theory ____practice.A. combine; toB. combine; withC. join; withD. join; to⑥ In order to better our future , each of us must first of all know our ______and weaknesses.A. strengthsB. benefitC. techniquesD. values⑦ It is known to us all that doing eye exercises ______our eyes, and that is to say , our eyes can ________doing eye exercises .A. benefits; to benefitB. benefits; benefit fromC. benefits from; benefitD. benefits; be benefited from⑧ I suggest you _____a lawyer .A. consultB. combineC. concludeD. concern⑨ The policeman asked the driver to ______speed to below 40 miles an hour.A. makeB. giveC. limitD. explain（二）重点短语1. By now his restaurant ought to be full of people.到了这个时候，他的餐馆本该宾客盈门的。