按照现行车辆购置税的有关规定，下列说法正确的有()。

根据以下材料回答第 1～4 题：

Passage five

The Northern Pike is a very bad fish．It is a bi9，hungry fish，and swallows little fishsuch as trout and Derch．Many Northern Pikes live in Lake Davis．They are killing all thesmaller fish in the lake．The Northern Pike are a serious threat to the lake because theyeat all the smaller fish．Soon，all other species of fish in the lake will be killed off．This isnot healthy for the environment．

Experts are afraid that the Northern Pick will swim out of Lake Davis through many

smaller rivers that feed into the lake．They could spread all over the country and damagemanv other water environments．If that happens，it would be too late to stop the NorthernPike．

For ten years,officials have been trying to remove the Northern Pike from Lake Davis．They have tried using nets，explosives and poisons．However，the Northern Pick puDulation is stilt doing well in Lake Davis．Many people do not like the idea of using poisonto kill the fish．They worry that the poisons are bad for humans who use the water．Notrace of the poisons has ever been found in local wells，however．

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

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

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.

What are the experts afraid will happen？

A. The Northern Pike will die.

B. The wells will be polluted.

C. Poisons will kill the Northern Pike.

D. The Northern Pike will swim into other lakes.

What are the experts afraid will happen？

A．The Northern Pike will die.

B．The wells will be polluted.

C．Poisons will kill the Northern Pike.

D．The Northern Pike will swim into other lakes.

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.

根据材料回答下列各题：This passage implies that war now is

A.worse than in the past

B.as bad as in the past

C.not so dangerous as in the past

D.as necessary as in the past

根据听力音频，回答下列各题：

A. Doing homework.

B. Fine, thank you.

C. Very good.

D. Writing a book.

听录音，回答下列各题：

A. Yes, it is.

B. Yes, I'd love to.

C. It's very big.

D. It's beautiful.

听录音，回答下列各题：

A．She's very interested in the idea.

B．She thinks they should invite more people.

C．She can't afford a holiday in May.

D．She's doubtful about the weather in May.

A.Family violence.

B.The Great Depression.

C.Her fathers disloyalty.

D.Her mothers bad temper.