Unit 3
1. Why don't we think of things that our classmates want to buy?
怎么不考慮我們同學(xué)想買(mǎi)的東西呢？
Why don't we（you）+do …？= Why not + do…？
為什么不做……？常用來(lái)提出建議。例：
Why not go and see her?
為什么不去看看她呢？
類(lèi)似提出建議的表示還有：
How about（What about）
Shall we do…？ Let's do… We'd better do…等 例：
Why not go shopping this Sunday?
這個(gè)禮拜日為什么不去購(gòu)物？
Let's go shopping this Sunday.
Shall we go shopping this Sunday?
How （What）about going shopping this Sunday?
2. Suddenly, Danny hears somebody say something.
突然，丹尼聽(tīng)到有人跟他說(shuō)了些什么。
在感官聽(tīng)覺(jué)動(dòng)詞see, watch, notice, look at, hear, listen to等詞后，用省略的to的動(dòng)詞不定式作賓語(yǔ)補(bǔ)足語(yǔ)。當(dāng)變成被動(dòng)語(yǔ)態(tài)時(shí)，要恢復(fù)to。例：
We often heard them argue next door.
我們常聽(tīng)見(jiàn)他們?cè)诟舯跔?zhēng)吵。
I saw him walk into the headmaster's office.
我看到他走進(jìn)校長(zhǎng)的辦公室。
He was noticed to come in the room.
有人注意到他進(jìn)了房間。
3. Sometimes, business English is hard to understand.
有時(shí)，商業(yè)英語(yǔ)很難懂。
此句還可以表示為：
To understand business English is hard. 或
It is hard to understand business English.
再例如：
The instructions are easy to follow.
這些說(shuō)明很容易明白。
It's easy to follow the instructions.
To follow the instructions is easy.
4. How much does it cost?
它花去多少錢(qián)？
此句是用來(lái)尋問(wèn)價(jià)錢(qián)的，還可以用what's the price of來(lái)表示。
How much does your coat cost?
你的大衣多少錢(qián)？
What's the price of your coat?
5. I don't think it would be safe to do my homework on a bicycle.
我認(rèn)為騎在自行車(chē)上寫(xiě)作業(yè)不是安全的。
It was fun to sell the cookies.
賣(mài)甜餅很有趣。
這兩個(gè)句子都有不定式做主語(yǔ)。其句式為：
It is + n. /adj + to do. 意為做某事如何……例：
It is fun to learn English.
學(xué)英語(yǔ)很有趣。
It's not good to speak when you have meals.
吃飯時(shí)說(shuō)話(huà)不好。
6. To hold up posters, maps and other papers.
動(dòng)詞不定式做目的狀語(yǔ)。動(dòng)詞不定式作目的狀語(yǔ)時(shí)，可以將其放于句首，也可以放于句末。例：
To learn English well, he went to England.
為學(xué)好英語(yǔ)，他去了英國(guó)。
（He went to England to learn English well.）
7. He made his first push-pins by himself.
他自己做了他的第一批圖釘。
make sth. by oneself 獨(dú)自做……，可以表示為：
make sth. alone
He made his bed by himself（alone）
他自己做的床。
8. The Moore family still owns the company and… 。
Moore一家仍擁有這家公司……
own，動(dòng)詞"擁有"可以用has"替換"
owner n. "擁有者，物主"。例：
The owner of the house is Li.
這家房子的主人是李。
Li owns the house.
李擁有這個(gè)房子。
own還可以作形容詞，意為"自己的"，常和形容詞性物主代詞連用，例：
This is our own room.
這是我們自己的房間。
Unit 4
1. What's wrong with Danny?
丹尼怎么了？
What's wrong with…？用來(lái)尋問(wèn)某人某物有什么病或出什么毛病了，也可以表示為"What's the matter with…？或What's the trouble?"例：
What's wrong / the matter with the boy?
What's the boy's trouble?
2. I don't feel well.
我感覺(jué)不舒服。
well是形容詞，用來(lái)指身體好，feel是系詞，和well構(gòu)成系表結(jié)構(gòu)，表示身體狀況的還有：feel bad / feel terrible（感覺(jué)很差）等。
另外well還常作副詞，指做得好。例：
He sings well.
他唱歌好。
He draws very well.
他畫(huà)畫(huà)非常好。
3. My head hurts 我頭疼。
說(shuō)有什么病可以用"身體部位+ hurts"或pain或have等詞來(lái)表示。例：
My stomach hurts.
我肚子疼。
I have a pain in my stomach.
I have a stomachache.
have（got）+病癥，常表示得什么病，例：
have（got）a cold / fever / cough / headache
感冒 發(fā)燒 咳嗽 頭痛
4. Salad is made of fresh vegetables.
沙拉由新鮮蔬菜做成。
be made of由……制成，常用于被動(dòng)語(yǔ)態(tài)，主語(yǔ)為制成物，賓語(yǔ)為原材料。例：
The chair is made of wood.
這個(gè)椅子由木頭制成。
如果制成物看不出原材料，常用詞組be made from。例：
The book is made from wood.
這本書(shū)由木頭制成。
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