(2) I _________ my homework yesterday. Now I had to do it.
Keys: 1. (1) whole (2) All 2. (1) left (2) forgot
疑难解析
1. My parents bought a computer for me. 父母我买了台电脑。
buy sth. for sb. = buy sb. sth. 意为“给某人买某物”。如：His father bought a new bike for him yesterday. = His father bought him a new bike yesterday.
除buy外，可以接双宾语的动词还有build, cook, draw, make, sing等。如：He sang us a song. = He sang a song for us. He’s a good singer. He always sings for us at parties.
2. But I don’t know how to use it yet. 但我还不知道该怎么用它。
“疑问词+不定式”构成的短语是动词不定式的复合结构，在句中可作主语（如①）、表语（如②）及宾语（如③）等。例如：
①Where to go tomorrow is still a question. Do you have any idea?
②–My question is what to do next.
–Do the first thing first. Then I’ll tell you what to do next.
③I don’t know how to drive a car. I want to learn to drive.
3. What makes you happy? 什么使你感到快乐?
（1）疑问代词what，who作主语时，谓语动词应用第三人称单数形式，因此句中的makes不能改为make。如：
–Who has a computer?
–Everybody has.
Who is cleaning the classroom? Some girls. 谁在打扫教室?几个女孩。
（2）make后跟宾语补足语，形容词happy在句中作宾语补足语，对宾语you起补充说明作用。但make后的宾语补足语应为名词、形容词或不带to的动词不定式。如：
They made him their head. Because he’s good at leading others in their work.
He never makes his brother do heavy work. He himself always do it instead.
You must keep your hands clean. Or it’s bad for your health.
4. At first she was asleep. 起初她睡着了。
①at first“起先，开始的时候”，其同义词组是at the beginning of，反义词组是at last“最后，终于”。如：
A first I didn’t know the way to the lake. But I know it. A woman showed me the way.
At first I wanted to find my lost pen. But I didn’t find it.
开始的时候，我想找到丢失的钢笔，但最终没有找到。
②asleep是表语性形容词，在句中只作表语，表示“睡着”的状态，它的反义词是awake。be asleep强调“睡着”的状态，go to sleep则强调“入睡”的动作过程。如：
She was too happy to be asleep. So she asked me to talk with her.
After he went for a walk, he went to sleep. 散步之后他睡了。
5. But she looked at me and cried harder and harder. 但她看了看我，哭得越来越厉害了。
harder and harder越来越厉害
比较级+and +比较级表示“越来越……”。如：
In spring the weather gets warmer and warmer. More and more people are getting ready for a long walk in the country.
Our country is becoming stronger and stronger. Our life is getting better and better.
注：如果是多音节形容词或副词，我们用“more and more +多音节形容词/副词”这一结构来表示“越来越……”。如：
It's becoming more and more difficult to find a job. More and more people are out of work.
Beijing is getting more and more beautiful. We are proud of it.
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