19.Which of the following may help determine a student's grade?

A.Homework.

B.A research project.

C.Performance in the lab.

20.What do we know about the textbooks for the class?

A.The students have already got them.

B.The students will have no textbooks.

C.The students can buy them at the bookstore.

答案：

听力原文及答案

Text 1

W：How is your mother feeling these days?

M:Much better,thanks.She should be coming home in a few days.The operation was a success and the doctor says she'll recover in no time.

Text 2

W:It's a beautiful evening,Rudy.Why don't we drive out to the seaside?

M:That's a fine idea.I enjoy walking along the seaside.

W:So do I.We can also watch the big ships.If only I could take a trip by ship!

Text 3

W:I have heard a lot about you these days.

M:Something bad?

W:Don't be modest.Everybody knows what you have done.

Text 4

W:Mary is an American,but she's lived in the Far East for most of her life.

M:Yes.She speaks Japanese and Chinese as well as she speaks English.

Text 5

M:Hello,Mrs. Taylor.Can you help me?I am doing my homework and I can't understand this word.

W:Which one?Oh...that is difficult.I can't help you right away.I'm watching a film on TV.

Text 6

M：Why did you have so many children?

W:I guess we do have a lot.It's hard to look after so many youngsters.

M:I have the same feeling.I have three brothers and two sisters,and my mother never had a moment of rest.

W:I wish I had stopped at two.It's so much more reasonable to have just a small family.

Text 7

W:Good afternoon.What can I do,for you?

M:Can you show me some ties?

W:Certainly,sir.How about this new design?

M:It doesn't suit me.

W:And this one?

M:Too dull for me.

W:How do you like that one,next to this one?