洪恩环境英语第五册 练习 11

　　Hello again!Lesson Eleven.
[00:-1.00]Answer some questions using could.
[00:-2.00]Listen to this examole.
[00:-3.00]Where's my hat?Is it in the bedroom?
[00:-4.00]It could be in the bedroom.
[00:-5.00]Are right?Let's try it.Where's my hat?Is it in the bedroom?
[00:-6.00]It could be in the bedroom.
[00:-7.00]I can't find my book.Is it on the desk?
[00:-8.00]It could be on the desk.
[00:-9.00]Who's at the door?Is it Robert?
[00:10.00]It could be Robert.
[00:11.00]Is this vase worth a lot of money?
[00:12.00]It could be worth a lot of money.
[00:13.00]Should we work on it ourselves?
[00:14.00]We ccould work on it ourselves?
[00:15.00]There's no name on this letter.Is if from Susan?
[00:16.00]It could be from Susan.
[00:17.00]Do you think you're wrong?     I could be wrong.
[00:18.00]Is this the train to Washington?
[00:19.00]It could be train to Washington.
[00:20.00]Is the post office closed now?     It could be closed.
[00:21.00]Good!Now answer the following questions with No and couldn't.
[00:22.00]Listen to the example.
[00:23.00]Is this painting worth a lot?
[00:24.00]No.It couldn't be worth a lot.
[00:25.00]OK.now you do it.Is this painting worth a lot?
[00:26.00]No.It couldn't be worth a lot.
[00:27.00]Are these documents a clue?
[00:28.00]No.They couldn't be a clue.
[00:29.00]Is thea Mary's husband?
[00:30.00]No.It couldn't be Mary's husband.
[00:31.00]Are these our seats?
[00:32.00]No.They couldn't be our seats.
[00:33.00]Is the treaty¹ in teh drawer?
[00:34.00]No.It couldn't be in the drawer.
[00:35.00]Is Diana the killer²?
[00:36.00]No.She couldn't be the killer.
[00:37.00]Very good!Now listen.
[00:38.00]These couldn't be the clue,could they?What are these,anyway?
[00:39.00]They're the oldest documents in Stamford.
[00:40.00]Listen and repeat.
[00:41.00]These couldn't be the clue,could they?
[00:42.00]This kind of question is called a "tag³ question."
[00:43.00]It is very easy to do,but you have to pay attention to the verbs.
[00:44.00]Listen to these examples
[00:45.00]"This couldn't be the clue(negative),could it(affirmative)?
[00:46.00]This could be the clue(affirmative),couldn't it (negative)?
[00:47.00]Now,after you hear the statement,add the correct tag question.
[00:48.00]Here's an example.I say,"He should call the police."
[00:49.00]And you say....He should call the police,shouldn't he?
[00:50.00]OK.Here we go.He should call the police.
[00:51.00]He should call the police,shouldn't he?
[00:52.00]You can meet me at the museum.
[00:53.00]You can meet me at the museum,can't you?
[00:54.00]We could hide the key.
[00:55.00]We could hide the key,couldn't we?
[00:56.00]The treaty is worth a fortune.
[00:57.00]The treaty is worth a fortune,isn't it?
[00:58.00]I should turn on the light.
[00:59.00]I should turn on the light,shouldn't I?
[-1:00.00]Philip Tate is the killer.
[-1:-1.00]Philip Tate is the killer,isn't he?
[-1:-2.00]These couldn't be the clue.
[-1:-3.00]These couldn't be the clue,could they?
[-1:-4.00]You aren't sure.     You aren't sure,are you?
[-1:-5.00]This isn't the Stamford Treaty.
[-1:-6.00]This isn't the Stamford Treaty,is it?
[-1:-7.00]He doesn't have an idea.     He doesn't have an idea,does he?
[-1:-8.00]That was easy,wasn't it?Now listen.
[-1:-9.00]It's worth a fortune.Are all these old documents worth money?
[-1:10.00]Yes.
[-1:11.00]Could this treaty be worth more than the others?
[-1:12.00]A lot more?     Oh,yes.
[-1:13.00]I could be wrong,
[-1:14.00]but I think there's a connection between the Stamford Treaty and the killer.
[-1:15.00]This could be a clue.
[-1:16.00]The letters th can be pronounced in two different ways.
[-1:17.00]Listen to the voiced TH sound in these words.
[-1:18.00]this
[-1:19.00]these
[-1:20.00]others
[-1:21.00]Now repeat.
[-1:22.00]this
[-1:23.00]these
[-1:24.00]others
[-1:25.00]the
[-1:26.00]the others
[-1:27.00]than the others
[-1:28.00]Now listen to the unvoiced TH sound in these words.
[-1:29.00]think
[-1:30.00]worth
[-1:31.00]Now repeat.
[-1:32.00]think
[-1:33.00]worth
[-1:34.00]worth a fortune
[-1:35.00]Now compare the two pronunciations.Repeat.
[-1:36.00]this  think
[-1:37.00]that  thank
[-1:38.00]then  thin
[-1:39.00]Repeat.
[-1:40.00]these  these old documents
[-1:41.00]are all these old documents
[-1:42.00]Are all these old documents worth money?
[-1:43.00]others  the others
[-1:44.00]than the others
[-1:45.00]worth more than the others
[-1:46.00]Could this treaty be worth more than the others?
[-1:47.00]think   but I think   but I think there's
[-1:48.00]But I think there's a connection.
[-1:49.00]This is the end of Lesson Eleven.

1 treaty   

n.条约；协议，协定

参考例句：

• Hungary has indicated its readiness to sign the treaty.匈牙利已表示愿意签订该条约。
• I believe this treaty will pave the way to peace in Europe. 我相信这个条约将为欧洲的和平铺平道路。

2 killer   

n.杀人者，杀人犯，杀手，屠杀者

参考例句：

• Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。
• The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。

3 tag   

n.标签，附属物，名称，谚语；vt.附以签条，尾随，添饰，指责，连接；vi.紧随，尾随

参考例句：

• Please tag your baggage.请在你的行李上贴上标签了。
• The clerk attached a price tag to each article.店员给每一件商品系上标价签。