Unit 3 知识点巩固练习
I. 单词拼写：根据句意及汉语提示，写出各句中所缺单词的正确形式。
1. Be more ________(耐心的). You will do it well if you keep on.
2. People with good _________(礼貌) will be welcome everywhere.
3. He will be _________(嫉妒的) if others get good marks in the contest.
4. I didn’t mind. _________(实际上), I was pleased.
5. In spite of his troubles, he gave the _________(外表) of being happy.
II. 用所给动词（短语）的适当形式填空。
account for, spot, stare, permit, care about, make a bet
1. We don’t __________ smoking in public places, because it harms others.
2. Lily _________ at her father, with her eyes wide.
3. She _________ her friend in the crowd the moment she arrived at the airport.
4. Philip couldn’t _________ his absence from school, which made me angry.
5. Never have I _________ such a thing. It is so dull.
6. He is fond of _________, but he lost every time he did so.
III. 句型转换：每空填一词，使该句与所给句子的意思相同。
1. When she was reading a newspaper, she heard that her son was crying.
_____ _____ a newspaper, she heard her son _____.
2. In fact, the air quality of Beijing is still worrying.
_____ _____ _____ _____ _____, the air quality of Beijing is still worrying.
3. Just as I was surfing the Internet, the storm hit the city suddenly.
I was surfing the Internet _____ the storm hit the city.
4. To tell the truth, he will never lie to any of us.
_____ _____ _____, he will never lie to any of us.
5. You are too silly. You shouldn’t believe what the beggar said.
It is silly _____ you _____ _____ the beggar.
Key:
I. 1. patient 2. manners 3. jealous 4. Indeed 5. appearance
II. 1. permit 2. stared 3. spotted 4. account for
5. cared about 6. making a bet
III. 1. When/While reading, crying 2. As a matter of fact
3. when 4. To be honest
5. of, to believe
Unit 3 重、难点解析
1. Permit me to lead the way, sir. (Reading)
permit 和allow的用法比较：
①两者都能以名词或?鄄ing形式作宾语，以不定式作宾补。通常可以互换。如：
We do not permit(allow)smoking in the office.
我们不允许在办公室里吸烟。
Mother wouldn’t permit(allow)her little daughter to go out at night.
妈妈不允许她的小女儿晚上出去。
②permit 表示“允许，许可”时语气较强，有赋予权利之意，常用于法律、规章、制度等方面。allow是常用语， 一般指听任或默认某人去做某事，仅仅表示不想妨碍之意。如：
The law permits the sale of such drugs. 法律允许出售这种药。
We can’t stand by and allow such a thing.
对这样的事我们不能袖手旁观。
③allow 可用来表示客气的请求。如：
Will you please allow me to use your pen? 我可以用你的钢笔吗？
2. I wonder, Mr Adams, if you’d mind us asking a few questions. (Reading)
mind表示“介意；反对”时，常用于下列结构：
①mind (sb/sb’s) doing something表示“介意或反对某人做某事”。如：
I don’t mind you/your closing the windows of the office.
我不会介意你关上办公室的窗户。
②Do you mind if+从句（谓语动词常用一般现在时）? 表示“你介意（某人做某事）吗？”。如：
Do you mind if I smoke here?
你介意我在这里吸烟吗？
③would mind if+从句（谓语动词常用过去式），表示“如果……的话, 某人会介意的。” 如：
Would you mind if I smoked here? 你介意我在这里吸烟吗？
I wouldn’t mind at all if Alice didn’t answer my question.
如果艾丽丝不回答我的问题，我一点也不会介意的。
3. I earned my passage by working as an unpaid hand, which accounts for my appearance. (Reading)
(1)account for 主要有两个含义：
① 是……产生的原因，说明……的原因
He couldn’t account for his foolish mistake.
他说不清他怎么会犯这样愚蠢的错误。
He is ill; that accounts for his absence.
他病了，这就是他缺席的原因。
②解释，说明
I want you to account for every cent you spent.
我想让你说明你花掉的每一分钱的用途。
(2) appearance 在此意为“出现”；它还有“出场”；“外貌”的意思。如：
Don’t judge by appearances.
请勿以貌取人。
Her appearance from behind a tree was unexpected.
没想到她从树后出来了。
His first appearance on stage was at the age of three.
他三岁时初次登台。
4. If this is your idea of some kind of joke, I don’t think it’s very funny. (Reading)
在英语中，如主句的谓语动词为think, believe, suppose等时，后接从句若要表示否定意义，则通常把否定词not提前到主句，这种现象称为否定前移，多见于第一人称。如：
I didn’t believe that Mr Wang had done anything wrong.
我相信王先生没做错什么事情。
I don’t think that it will rain in the recent three days.
我认为近三天是不会下雨的。
5. It would be wrong of me not to trust a gentleman such as yourself, sir, ... (Using Language)
“It is +形容词+of / for someone to do...”句型中，it作形式主语，替代动词不定式短语。 如其中的形容词为kind, nice, wise, silly, foolish, friendly, polite, wrong, right等修饰人的词时，介词用of；如形容词为necessary, important，impossible , possible, easy, difficult, hard等描述不定式所表达的内容的词时，介词用for。如：
It was very kind of you to help the old lady out of the busy street.
你真善良，帮助那位老太太走出那条繁忙的街道。
How silly it was of me to ask her that question!
我真的很傻，居然向她提出那么一个问题！
It is impossible for us to get there in time.
我们不可能及时赶到那里。
It is hard for a poor man to earn his living.
穷人谋生很困难。
