在对话2)中，Jean用降调说“Sorry”，显然其意思是拒绝帮助或无能为力。

?首先要知道英语主要有三种语调，分别是升调，降调和降升调。

升调一般表示"不确定" "话还没有说完"或者"礼貌" 。经常用于下面几类句型中：

(1)一般疑问句(Yes-no questions) Is he coming tonight? Have you got the tickets?

(2)反问句(Statements intended as questions) You are definitely coming? You like it?

(3)表示安慰或鼓励(Statements intended to be soothing or encouraging.) Come with us.

(4)重复(Repetition questions) When did you come?

说话时用"降凋"，常常给人一种"完结"的印象。所以能使用降调的句子有以下几类：

(1)陈述句(Ordinary statements) You came on Tuesday. I'd like some tea.

(2)特殊疑问句(Wh- questions) When did you come? What's the time?

(3)带命令口吻的祈使句(Imperative sentences ( strong commands) Put it over there! Go and find it!

(4)感叹句Exclamatory sentences What an awful film that was!

如果要表示出"说话人改变主意，或话外有话之意"，就可以用"降升调"。它主要出现在下面的句式中：

(1)含有对比的陈述句Statements where contrast is implied. You can come on Tuesday but not Monday. He doesn't want it but his brother may.

(2)含保留意见的陈述句Statements which imply reservation. I know his face. I like the colour of your dress.

(3)否认或矛盾Statements which show disagreement or contradiction ──I can't do it. ──-You can. ──She arrived on Monday. ──-On Tuesday.

(4)警告Warning. Be careful. Don't be late.

【语法】定语从句( 复习 )

【同步练习】

一、 单项选择

1. The way he did it was different _______ we were used to.

A. in which B. in what C. from what D. from which

2. There were dirty marks on her pants ________ she had wiped her hands.

A. where B. which C. when D. that

3. We had to eat standing up because we hadn’t anything _____ we could sit on.

A. which B. where C. what D. that

4. Mr. Green still talks like the man ______ he was ten years ago.

A. who B. that C. what D. whom

5. _____ can be called a car always rolls on wheels.

A. Anything B. Whatever C. All that D. Whichever

6. This is a book _______ is red.

A. of which cover B. the cover of that C. which cover D. whose cover

7. They didn’t call the police till 2 hours later, ____allowed the thief enough time to escape.

A. when B. which C. why D. how

8. We visited a temple yesterday, in front of_______ a small river.

A. which flew B. that flows C. which flows D. where flows

9. What ________ you want her to do?

A. is B. is it C. that D. is it that

10. It was two years ago ______ China was hit by SARS.

A. that B. when C. in which D. then

11. It was wise of you to ______ his advice.

A. have B. receive C. approve D. take

12. We take great ______ in the achievement of our nation.

A. prize B. proud C. pride D. value

13. Your support will make a ______ !

A. change B. mark C. choice D. difference.

14. Attributive Clause has already been ______ with in the previous unit.

A. dealt B. deal C. did D. done

15. You can go out to play,_______ that you finish your work first.

A. now B. in C. in order D. provided