3. lose weight体重减轻；减肥

[典例]

She is trying to lose weight. 她在努力减肥。

[短语归纳] weight短语及lose短语：

put on weight(指人)增加体重，长胖　　　　　　　　　 be/take a weight/load off sb’ s mind使自己/某人如释重负

lost heart 泄气；灰心　　　　　　　　　　　　　　　　　　　　　　　 lose one’ s heart (to sb/sth): fall in love 爱上；锺情於……

lose one’ s life 丧生；遇害　　　　　　　　　　　　　　　　　　　 lose one’ s balance 失去平衡

lose one’ s breath气喘嘘嘘；上气不接下气　　　　　 lose one’ s head 昏了头，张皇失措，冲动

lose one’ s temper发脾气　　　　　　　　　　　　　　　　　　　　　 lose one’ s job 失业　　　　　　　　　　　　　　　　　　　　　　

lose one’ s way: become lost 迷路　　　　　　　　　　　　　　 lose touch (with sb/sth) 失去和某人/事物的联系　　

lose interest in sth/sb 对某事物/人失去兴趣　　　　　　 lose sight of sb/sth 看不见某人/物；忽略或未考虑某事物

lose face 丢脸　　　　　　　　　

[练习] 用weight短语及lose短语的适当形式填空或填介词。

1). He’ s ______ ______ ______ since he gave up smoking.　

2). Paying my mortgage was an enormous weight ______ (介词) my mind!　

3). I’ ve ______ ______ ______ all my old friends.

4). Don’ t ______ ______ ______ --- keep calm!

Keys: 1). put on weight　　 2). off　　 3). lost touch with　　 4). lose your head

2. ought to aux. 应当；应该(没有人称和数的变化，后接动词原形)

[典例]

1). They ought to come tomorrow. 他们明天应当来。

2). He thought that they ought to take part in the design. 他认为他们应当参加设计。

3). He ought not to do it. / He oughtn’ t to do it.(否定形式)他不应该做这件事。

4). Ought we to do it at once?(疑问式)我们应该马上做这件事吗？

[练习] 按要求填空或翻译。

1). He ought to be here, __________ he? (反意疑问句)

2). I’ m sorry. I ____________________ (本应该先给你打个电话) to tell you 1 was coming．

3). I ______________________ (本不该拜访) her, but I missed her so much.

Keys: 1). shouldn’ t / oughtn’ t　　 2). should / ought to have phoned 　 3). shouldn’ t / ought not to have visited

1. be tired of = be fed up with = be sick of 对……厌烦了

[典例]

1). We are fired of hearing the old story. 这老话我们听厌了。

2). I’ m tired of the same breakfast every day. 我厌倦了每天吃同样的早餐。

[短语归纳]

get/be tired of doing sth. 厌倦(做某事) 　　　　　 get/be tired from doing sth 因……而疲倦

be tired out = be worn out 非常疲倦

[练习] 用tired短语的适当形式填空。

1). My eyes ______ ______ ______ reading in a poor light.

2). I ______ ______ ______ watching television; let’ s go for a walk.

3). I ______ ______ ______. Can we stop for a rest?

Keys: 1). were tired from　　 2). am tired of　　 3). am tired/worn out

5. combine vt.&vi. (使)联合；结合 combination n. 联合；结合 combined adj. 联合起来的

[典例]

1). We can’t always combine work with pleasure. 我们并不总是能在工作中享受到乐趣。

2). Circumstances have combined to ruin our plans for a holiday. 各种情况凑在一起破坏了我们的假日计划。

[短语归纳] combine的短语：

combine with sb./ sth. 与某人某物结合起来　　　　　　　　　　　　　　　　　　　 combine together联合起来

combine A with/and B 使A与B联合起来

[练习] 用combine的短语或其适当形式填空。

1) A _______ of factors led to her decision to resign.

2) Success was achieved by the _______ efforts of the whole team.

3) As a writer, he _______ wit _______ passion.

Keys: 1). combination　　　 　 2). combined　 3). combined; and/with

4. benefit vt. 有益于 vi. 得益于(常与from, by连用) n. 利益，好处；津贴

1). The rain benefits the plants. = The plants benefit from the rain. 这场雨有益于植物。

2). This dictionary will be of great benefit to me. 这本字典将对我有很大的好处。

3). He said he would starve rather than beg for food. 他说他宁愿挨饿也不要饭吃。

4). The enemy is trying to starve us to death. 敌人正在企图饿死我们。

[重点用法]

be of great benefit to = be very beneficial to 对……有益　　　　　　 　

for the benefit of = for sb’ s benefit为了……的利益　　　 benefit from 从……中受益

[练习] 用benefit或其短语的适当形式填空。

1). The new highway will ________ the villagers.

2). He will _________ the new way of studying.

3). The warning sign was put there _________ the public.

Keys: 1). benefit 　 2). benefit from　　　 　 3). for the benefit of

3. limit vt. 限制；限定　 n. 界限；限度　 limited adj. 有限的　 limitless adj. 无限制的

[典例]

1). The speed limit on this road is 70 mph. 这条路的车速限制是每小时70英里。

2). We must try and limit our expenditure. 我们必须设法限制我们的开支。

3). There’ s a limit to how much I’ m prepared to spend. 我准备花多少钱是有限度的。

[短语归纳] limit短语：

limit sb./sth. to...　 限制某人/某事到某种程度　　　　　　　 put a limit on... 对……限制

there is a limit to对……是有限的　　　　　　　　　　　　　　　　　 without limit 无限地，无限制地

[练习] 用limit的短语或其适当形式填空。

1). One’s energy is ______.

2). ______ ______ ______ ______ (没有止境) what you can do if you try.

3). We must _______ our weekly expenditure ______ ten pounds.

4). Only a _______ number of places are available.

Keys: 1). limited　　 2). There’ s no limit to　　　 　 3). limit; to　　　 　 4). limited

2. curiosity n. 好奇心　 curious adj. 好奇的　 curiously adv. 好奇地

[典例]

1). 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。

2). 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。

[重点用法]

out of curiosity 出于好奇　　　　　　　　　　　　　　　　　 with curiosity = curiously好奇地

be curious about sth. 对某事好奇　 　　　　　　　　　 be curious to do sth. 好奇地做某事

[练习] 用curiousity的短语或其适当形式填空。

1). Margaret looked at him _______ _______.

2). She decided to try a cigarette _______ _______ _______.

3). All the employees in this firm _______ _______ ______ the personal life of the general manager.

4). ________ enough, he had never seen the little girl.

3). ________ drove Mary to open her husband’ s letter though she knew it was wrong.

Keys: 1). with curiosity　　 2). out of curiosity　 　 3). are curious about　　 4). Curiously　　 5). Curiosity

1. balance n. 天平，平衡；余额，余数　 v. 平衡；权衡　 balanced adj. 均衡的

[典例]

1). 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。

2). I must check my bank balance (= find out how much money I have in my account).

　 我要核对一下我在银行的余额(看我的帐户上有多少钱)。

3). 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。

[重点用法]

a balanced diet 均衡的饮食　　　　　　　　 　 keep the balance of nature保持生态平衡

keep one’ s balance保持平衡　　　　 　 lose one’ s balance (= be out of balance) 失去平衡

[练习] 用balance短语填空或翻译。

1). He ______ ______ ______ and hurt himself when he went upstairs.

2). It is difficult to for you to ______ ______ _______ on an icy pavement.

3). 我们必须权衡利弊才做出决定。

________________________________________________________________________________________

Keys: 1). lost his balance　　 2). keep your balance　　　 　 3). We must balance the advantages against the disadvantages before we decide.