完成句子（满分7.5分）

1.你能看见远处的那座小山吗？

Can you see the hill _________ the __________.

2.他已决定到乡下去定居了。

He has decided to __________ __________ in the countryside.

3.在昨天的会议上，那个好消息让在场的所有人都高兴了起来。

At the meeting yesterday the good news _______ ______ all the people present.

4.我们不应该轻视体力劳动。

We should not __________ __________ __________ manual labor.

5.绝大多数人同意核科技发展应该造福人类而不是危害人类。

Most people would agree that nuclear science should be developed to benefit the human beings                       harm them.

6.有时候，在读英语文章时如果碰到一些生词，你可以查查字典。

Sometimes if you __________ __________ some new words in reading English articles, you can __________ __________ a dictionary.

With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species(物种). That’s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”

1. 1.

   The aim of “Noah’s Ark” project is to _______.

   1. A.
      make efforts to clone the endangered pandas
   2. B.
      save endangered animals from dying out
   3. C.
      collect DNA of endangered animals to study
   4. D.
      transfer the nuclear of one animal to another
2. 2.

   According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.

   1. A.
      available panda eggs
   2. B.
      host animals
   3. C.
      qualified researchers
   4. D.
      enough money
3. 3.

   The best title for the passage may be _______.

   1. A.
      China’s Success in Pandas Cloning
   2. B.
      The First Cloned Panda in the World
   3. C.
      Exploring the Possibility to Clone Pandas
   4. D.
      China —the Native Place of Pandas Forever
4. 4.

   From the passage we know that _______.

   1. A.
      Kraemer and his team have succeeded in cloning a dog
   2. B.
      scientists try to implant a panda’s egg into a rabbit
   3. C.
      Kraemer will work with Chinese scientists in clone researches
   4. D.
      about two thousand of species will probably die out in a century

Imagine that the genome （基因组） is a book．The book consists of 23 chapters with thousands of stories made up of paragraphs, words and letters on different levels．There are one billion words in the book, as long as 800 Bibles; if I read the genome out to you at the rate of one word per second for eight hours a day, it would take me centuries; if I wrote out the human genome, one letter per millimeter, my text would be as long as the River Danube．This is a huge volume, a book of great length, but it all fits inside an extremely small cell nuclear（细胞核） that fits easily upon the head of a pin．

The idea of the genome as a book is not, strictly speaking, even a metaphor．It is true to a great extent．A book is a piece of digital information, written in one-directional form and defined by a code that translates a small alphabet of signs into a large dictionary of meanings through the order of their groupings．So is a genome．The only difference is that all English books read from left to right, while some parts of the genome read from left to right while some from right to left, but never both at the same time．

While English books are written in words of different lengthens using twenty-six letters, genomes are written entirely in words of three-letter length, using only four letters, and instead of being written on flat pages, they are written on long chains of DNA molecules （分子）．

The genome is a very clever book, because in the right condition it can both photocopy itself and read itself．

1.How do human genomes read according to the passage?___________

2.We can learn from the passage that the human genome ________．

3.It can be concluded that the passage is mainly written for ______．

4.The real purpose of the author’s comparison of the genome to a book is _____．

There are three separate sources of danger in supplying energy by nuclear power(原子能).

First, the radioactive material must travel from its place of production to the power station. Although the power stations themselves are strongly built, the containers used for the transport of the materials are not. Normally, only two methods of transport are in use, namely road or rail. Unfortunately, both of these may have an effect on the general public, since they are sure to pass near, or even through, heavily populated areas.

Second, there is the problem of waste. All nuclear power stations produce wastes that in most cases will remain radioactive for thousands of years. It is impossible to make these wastes nonradioactive, and so they must be stored in one of the inconvenient ways that scientists have invented. For example, they may be buried under the ground, or dropped into deserted mines, or sunk in the sea. However, these methods do not solve the problem, since an earthquake could easily break the containers.

Third, there may occur the danger of a leak(泄漏) or an explosion at the power station. As with the other two dangers, this is not very likely, so it does not provide a serious objection to the nuclear program. However, it can happen.Separately, these three types of dangers are not a great cause for worry. Taken together, though, the probability of disaster(灾难) is extremely high.

1.Which of the following is FALSE?

A.It is possible that a leak or an explosion occurs at a power station.

B.It is unusual for radioactive materials to be transported across land.

C.The containers are likely to be broken by an earthquake.

D.Nuclear wastes remain dangerous in most cases for many years. 

2.The author thinks that the ways to store nuclear wastes are ________.

A.easy      B.impossible         C.reasonable        D.ineffective 

3.What do we learn from the last paragraph?

A.The power station is a safe place.

B.The dangers of nuclear energy can be prevented.

C.The general public are strongly against the nuclear program.

By itself, none of the three dangers is very likely to cause much worry.

4.What is this passage about?

A.Uses of nuclear power.          B.Dangers from nuclear power.        

C.Public anger at nuclear power.  D.Accidents caused by nuclear power. 

Sixty-five million years ago, an asteroid (小行星) that crashed on Earth led to the disappearance of the largest animals that have ever walked our planet – the dinosaurs. At least, this is what some scientists believe. But that accident happened so long ago. People have come to believe that we are free of threats from asteroids and everything else from space.

However, what happened on Feb 15 , 2013 was a reminder that we’re just as vulnerable as the dinosaurs once were. Two objects from space – a meteor (陨石) and an asteroid called 2012 DA14 –  visited Earth’s atmosphere on the same day. The former fell in Russia, injuring 1,200 people, while the latter passed by Earth at a record-setting close distance.

Scientists had been expecting the asteroid since last year, but the meteor was a surprise. NASA’s telescope system only detects asteroids at least 50 meters in diameter (直径), which is just about the size of 2012 DA14. But the meteor was much smaller, which made it harder to spot.

But what if we do spot an asteroid that is headed right for Earth? There are several possible ways in which dangerous asteroids could be made to change its orbit. Which method is best depends on several factors and most importantly  –  how much time we have to stop it.

If there is enough time before the hit, we can send off a heavy spacecraft to travel alongside the asteroid. The gravity from the spacecraft would gradually change the rock’s orbit. Besides that, scientists could one day use sun-powered lasers to either make asteroids disappear or change their course. If there’s not enough time, we’ll have to go after the asteroid with a spacecraft and change its orbit with a crash. Finally, if things are truly desperate, there will be only one choice left –  to use a nuclear bomb. That could turn the asteroid into a meteor shower, which would be even more dangerous.

1.The author mentioned the asteroid that led to the dinosaurs’ dying out to ______.

A. show that asteroids fall from space frequently

B. alert people about the possible danger of objects falling from space

C. inform readers about the constant threats the Earth faces

D. suggest that there are still many mysteries about the universe

2.The underlined word “vulnerable” in the second paragraph probably means ______.

A. unprotected                  B. lonely            C. stupid            D. self-important

3.Which of the following statements is TRUE about the meteor that fell to the Earth in Russia?

A. It passed by the Earth at a close distance.

B. It was spotted by NASA’s telescope system a year ago.

C. It is about the same size as the asteroid that passed by the Earth.

D. It fell to the Earth and caused great damage to the local community.

4.What is the main idea of the article?

A. Learning about asteroids and meteors.

B. The threats of objects from space and possible solutions.

C. NASA’s latest technology to discover visitors to the Earth from space.

D. How to measure the damage of collisions from asteroids and meteors.