W: Why can’t you just look at the mineral to see what color it is?

M: Well, you can, but sometimes a mineral has some other substance in it,

and the substance can change its color.

But a streak test shows the mineral’s true color.

Then there’s always the specific gravity test, the blowpipe test … oh, and …

W: And after you’ve done all these tests, you can positively identify any mineral?

M: Well, usually … but not always. I just hope I can on Monday!

Questions 23 to 25 are based on the conversation you have just heard.

23.What type of exam is the man taking on Monday?

24.According to the man, what does a streak test show about a mineral?

25. What does the man imply about the tests used to identify minerals?

Section B Directions: In this section, you will hear 3 short passages.

At the end of each passage, you will hear some questions.

Both the passage and the questions will be spoken only once.

After you hear a question,

you must choose the best answer from the four choices marked A), B), C) and D).

Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

Passage One

A friend of mine told me that when he was a young man,

he went to work as a teacher in one of the states of India.

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