课文详注 Further notes on the text
1．What's the matter？怎么啦？
相当于 What's wrong？或 Tell me what's wrong。这个句型通常用来询问发生了什么事。假如要非凡提及某人，可以在后面加上介词with，如：
What's the matter with you?
What's the matter with Claire?
3．There's = There is。
它表示“有”、“存在”，为 there + be结构的一般现在时缩略形式。
4．Two ice creams please．请拿两份冰淇淋。
相当于 Give us two ice creams，please。请参见 Lessons 3～4课文注释。ice cream是物质名词。物质名词前加不定冠词 a或基数词表示一种、一份、一客、一类、一阵等。
语法 Grammar in use
在说明或询问人、物等的存在时即可使用there +be结构。说There's an ice cream man比说An ice cream man is there更合乎习惯，也更为自然。there +be结构可将重要的新信息置于句末，以示强调。此结构中的实际主语是be后面的名词。因此，假如该名词是单数就用is，如是复数则为are。
英文中系动词be（是）必须根据不同的人称代词作相应的变化。请参见Lessons15～16语法部分中有关be的一般现在时形式的内容，包括某些缩略形式，如：they are not =they aren't =they're not，we are not = we aren't =we're not。
词汇学习 Word study
We're tired and thirsty.
a dry and thirsty land 干旱的土地
The students there are thirsty for knowledge.
It's a private matter.
He's not very interested in financial matters.
What's the matter, Anna?
What's the matter with Steven?
练习答案 Key to written exercises
1 Those children are tired.
2 Their mother is tired, too.
3 That ice cream man is very busy.
4 His ice creams are very nice.
5 What's the matter, children? We are thirsty.
6 What's the matter, Tim? I am tired.
1 Are the children tired or thirsty?
They're not tired. They're thirsty.
2 Are the postmen cold or hot?
They're not cold. They're hot.
3 Are the hairdressers thin or fat?
They're not thin. They're fat.
4 Are the shoes small or big?
They're not small. They're big.
5 Are the shops shut or open?
They're not shut. They're open.
6 Are his cases heavy or light?
They're not heavy. They're light.
7 Are grandmother and grandfather young or old?
They're not young. They're old.
8 Are their hats old or new?
They're not old. They're new.
9 Are the policemen short or tall?
They're not short. They're tall.
10 Are his trousers short or long?
They're not short. They're long.