Passage Five In every language there are two great classes of words which, taken together,

Passage Five

The Northern Pike is a very bad fish. It is a big, hungry fish, and swallows little fish such as trout and perch. Many Northern Pikes live in Lake Davis. They are killing all the smaller fish in the lake. The Northern Pike are a serious threat to the lake because they eat all the smaller fish. Soon, all other species of fish in the lake will be killed off. This is not healthy for the environment.

Experts are afraid that the Northern Pike will swim out of Lake Davis through many smaller rivers that feed into the lake. They could spread all over the country and damage many other water environments. If that happens, it would be too late to stop the Northern Pike.

For ten years, officials have been trying to remove the Northern Pike from Lake Davis. They haw. tried using nets, explosives and poisons. However, the Northern Pike population is still doing well in Lake Davis. Many people do not like the idea of using poison to kill the fish. They worry that the poi- sons are bad for humans who use the water. No trace of the poisons has ever been found in local wells, however.

Scientists are going to try the poison again. This time, they will drain the lake before they add the poison to the water. A public hearing will be held to talk about the problem.

52. Why are some people against the use of poisons to kill Northern Pike？

A. Fishermen will be poisoned too.

B. The poisons are expensive.

C. They think that wells will be polluted.

D. The lake will become unsafe.

A.single

B.unique

C.only

D.sole

Passage 1

Seven years ago, when I was visiting Germany, I met with an official who explained to me that the country had a perfect solution to its economic problems. Watching the U.S. economy _1_ during the’90s, the Germans had decided that they, too, needed to go the high-technology route. But how？ The answer seemed obvious: Indians. The German government decided that it would _2_ Indians to Germany just as America does: by offering green cards. Officials created something called the German Green Card and announced that they would issue 20,000 in the first year. Naturally, the Germans expected that tens of thousands more Indians would soon be begging to come, and perhaps the _3_ would have to be increased. But the program was a failure. A year later barely half of the 20,000 cards had been issued. After a few extensions, the program was _4_. I told the German official at the time that I was sure the _5_ would fail. Because the German Green Card never, under any circumstances, translated into German citizenship. The U.S. green card, by contrast, is an almost _6_ path to becoming American (after five years and a clean record). The official _7_ my objection, saying that there was no way Germany was going to offer these people citizenship. “All we need are young tech workers，”he said. So Germany was asking bright young _8_ to leave their country, culture and families, move thousands of miles away, learn a new language and work in a strange land一but without any _9_ of ever being part of their new home. Germany was sending a signal, one that was _10_ received in India and other countries, and also by Germany’s own immigrant community.

A) repelled

B) professionals

C) clearly

D)vulnerable

E) lure

F) initiative

G) soar

H)suspicion

I) abolished

J) dismissed

K) dwellers

L) quotas

M) vividly

N) automatic

O) prospect

第1空答案是：

A、tell

B、say

C、talk

D、define

A．emigrated to other countries

B．often settled in the West

C．tended to change the place in which they lived

D．had a higher rate of birth than ever before

From the passage we will learn that the clean-up effort______.

A．is the largest one supported by Sherpas Nepal

B．is opposed by the local people

C．is encouraged by the American government

D．is the greatest one ever made in the world

According to the passage which of the following is true？

[A] A fixed star refers a star that is always stationary on the sky.

[B] Scientists can tell the motion of the earth from the motions of other five planets.

[C] Ancient people had scanty knowledge about the movement of the stars.

[D] All the stars on the sky can be seen all the year around.