Questions 19 to 22 are based on the conversation you have just heard.
19.According to the conversation, why was Tim unable to buy the ticket?
20.Why doesn’t Tim have a driver’s license?
21.What does the woman suggest Tim bring when he goes to the Bureau of Motor Vehicles?
22.What does the woman offer to do for the man?
Conversation Two
M: Want to go out and get something to eat?
W: I can’t. I have a chemistry midterm on Monday and a German exam on Tuesday.
M: I have a geology exam Monday myself, but I think I’m ready for it.
W: What kind of exam is it going to be—multiple choice or essay?
M: Neither. The professor is going to give us a mineral sample and we have to identify it.
W: How do you do that? I mean, a rock’s a rock, isn’t it?
M: Actually, there are a lot of tests you can perform on minerals to help you figure out what they are.
Probably the first tests I’ll do are scratch tests.
When you do a scratch test, you rub the sample on a known mineral
to see if the unknown mineral scratches the know mineral or vice versa.
That tells you the relative hardness of the sample.
W: What other tests will you do?
M: I’ll probably do a streak test next.
In that test, you rub an unknown mineral against a piece of china to see what color the streak is.
【星火英语2008年6月版听力强攻第2课】相关文章:
最新
2017-01-16
2016-10-21
2016-10-08
2016-10-08
2016-10-08
2016-10-08