I need to have a second check up to confirm the ________.

She decided to take a second course since she ______the first one.

A．has completed

B．is completing

C．had completed

D．will complete

She decided to take a second course since she______the first one.

A．has completed

B．is completing

C．had completed

D．will complete

听力原文：M: Can I borrow your pen? Mine is out of ink.

W: Sony, I don't have a second pen. Would a pencil do?

What did the woman mean?

A．She could let the man have her pen.

B．She had no pen herself.

C．She could offer him a pencil.

听力原文：M: Can I borrow your pen? Mine is out of ink.

W: Sorry, I don't have a second pen. Would a pencil do?

What did the woman mean?

A．She could offer him a pencil.

B．She had no pen herself.

C．She could let the man have her pen.

听力原文：M: Can I borrow your pen? Mine is out of ink.

W: Sorry, I don't have a second pen. Would a pencil do?

What did the woman mean

A．She could let the man have her pen.

B．She had no pen herself.

C．She could offer him a pencil.

Suppose you go into a fruiter's shop, wanting an apple--you take up one, and on biting it you find it is sour; you look at it, and see that it is hard and green. You take up another one, and that, too, is hard, green, and sour. The shopman offers you a third; but before biting it, you examine it, and you find that it is hard and green, and you immediately say that you will not have it, as it must be sour, like those that you have already tried.

Nothing can be simpler than that, you think; but if you will take the trouble to analyze and trace out into its logical elements what has been done by the mind, you will be greatly surprised. In the first place you have performed that operation of induction. You find that, in two experiences, hardness and greenness in apples went together with sourness. It was so in the first ease, and it was confirmed by the second. True, it is a very small basis, but still it is enough from which to make the induction; you generalize the facts, and you expect to find sourness in apples where you get hardness and greenness. You found upon that a general law, that all hard and green apples are sour; and that, so far as it goes, is a perfect induction. Well, having got your natural law in this way, when you are offered another apple which you find is hard and green, you say, "All hard and green apples are sour; this apple is hard and green; therefore, this apple is sour. "That train of reasoning is what logicians call a syllogism, and has all its various parts and terra--its major premises, its minor premises, and its conclusion. And, by the help of further reasoning, which, if drawn out, would have to be exhibited in two or three other syllogisms, you arrive at your final determination. "I will not have that apple." So that, you see, you have, in the first place, established a law by induction, and reasoned out the special particular case

Well now, suppose, having got your conclusion of the law, that at sometime afterwards, you are discus- sing the qualities of apple with a friend; you will say to him, "It is a very curious thing, but I find that all hard and green apples are sour!" Your friend says to you, "But how do you know that?" You at once reply, "Oh, because I have tried them over and over again, and have always found them to be so," Well, if we were talking science instead of common sense, we should call that an experimental verification. And, if still opposed, you go further, and say, "I have heard from people in Somersetshire and Devonshire, where a large number of apples are grown, and in London, where many apples are sold and eaten, that they have observed the same thing. It is also found to be the case in Normandy, and in North America. In short, I find the universal experience of mankind wherever attention had been directed to the subject." Whereon your friend, unless he is a very unreasonable man, agrees with you, and is convinced that you are quite fight in the conclusion you have drawn. He believes, although perhaps he does not know he believes it, that the more extensive verifications have been made, the more results of the same kind are arrived at--that the more varied the conditions under which the same re-suits are attained, the more certain is the ultimate conclusion, and he disputes the question no further. He sees that the experiment has been tried under all sorts of conditions, as to time, place, and people, with the same result; and he says to you, therefore, that the law you. have laid down must be a good one, and he must believe it. (654)

The writer is probably ______.

A．French

B．English

C．American

D．Italian

You are not allowed to take a second job ______ your employer gives you permission.

A．so long as

B．otherwise

C．unless

D．whereas

We walked so quietly that the nurse at the desk didn't even lift her eyes from the book. Mum pointed to a big chair by the door and I knew she wanted me to have a seat. While I watched mouth open in surprise, mum took off her hat and coat and gave them to me to hold. She walked quietly to the small room by the lift and took out a wet mop (拖把). She pushed the mop past the desk and as the nurse looked up, mum nodded and said," Very dirty floors."

"Yes. I'm glad they've finally decided to clean them," the nurse said. She looked at strangely and said," But aren't you working late?"

Mum just pushed harder, each swipe (拖) of the mop taking her farther and farther down the hall. I watched until I couldn't see her and the nurse had turned back to write in the big book

After a long time mum came back. Her eyes were shining. She rapidly put the mop back and took my hand. As we turned to go out of the door, mum nodded politely to the nurse and "Thank you."

Outside, mum told me:" Dagmar is fine. No fever."

"You saw her, mum?"

"Of course. I told her about the hospital rules, and she will not expect us until tomorrow will stop worrying as well. It's a fine hospital. But such floors! A mop is no good. You need a brush."

When she took a mop from the small room what mum really wanted to do was a________

A．to clean the floor

B．to please the nurse

C．to see a patient

D．to surprise the story-teller

Which Of the following is true according to Paragraphs 2-4?

A．The head teacher was killed by Duane Morrison On September 29th.

B．All killers appeared to have a sexual motive.

C．Both killers had mental illness.

D．One killer committed suicide in the scene of the crime.

Bringing nanotechnology to health care for the poor

Nanotechnology uses matter at the level of mo1ecules and atoms .Researchers are finding different uses for particles with a length of one nanometer，or one—billionth of a meter．These include things like beauty products and dirt—resistant clothing． But one area where many experts believe nanotechnology holds great promise is medicine．

Last week， speakers at a program in Washington discussed using nanotechnology to improve health care in developing countries．The program took place at the Woodrow Wilson International Center for Scholars．Peter Singer at the University of Toronto says a nanotechnology called quantum dots could be used to confirm eases of malaria．He says it could offer a better way than the traditional process of looking at a person’s blood under a microscope．

In poor countries，this process is often not followed． As a result，sick people may get treated for malaria even if they do not have it． Such misuse of medicines can lead to drug resistance. Quantum dots are particles that give off light when activated． Researchers are studying ways to program them to identify diseases by lighting up in the presence of a targeted molecule．

Experts say nanotechnology shows promise not just for diagnosing diseases，but also for treating them. Piotr Grodzinski of the National Institutes 0f Health talked about how nanotechnology could make drugs more effective．He talked about cancer drugs already developed with nanotechnology．He says if a drug can target a cancer locally in the body，then mach less of it might be needed，and that means lower side effects．

Andrew Maynard is chief scientist for the Project on Emerging Nanotechnologies at the WoodrowWilson Center．He noted that Brazil，India，China and South Afrieca are currently doing nanotechnology research that could help poor countries． But he also noted that there is some risk in using nano—materials. He says nanometer—sized particles behave differently in the body and the environmentcompared to larger particles． Experts say more investment in research is needed to better understand these risks．

第 36 题 Which of the following uses of nanotechnology is NOT mentioned in the passage?

A．To make beauty products and dirt—resistant clothing．

B．To produce better and lighter building materials．

C．To help more accurately diagnose diseases．

D．To help more effectively treat diseases．