_____ cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research to produce a cloned human baby.

A. While           B. As                  C. If                       D. How

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

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

A. make efforts to clone the endangered pandas

B. save endangered animals from dying out

C. collect DNA of endangered animals to study

D. transfer the nuclear of one animal to another

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

A. available panda eggs                B. host animals

C. qualified researchers                D. enough money

3. The best title for the passage may be _______.

    A. China’s Success in Pandas Cloning                                 

       B. The First Cloned Panda in the World

       C. Exploring the Possibility to Clone Pandas

       D. China —the Native Place of Pandas Forever

4. From the passage we know that _______.

    A. Kraemer and his team have succeeded in cloning a dog

       B. scientists try to implant a panda’s egg into a rabbit

       C. Kraemer will work with Chinese scientists in clone researches

       D. about two thousand of species will probably die out in a century

查看答案和解析>>

科目：高中英語 來源：2014屆福建省高一下學(xué)期期中考試英語試卷（解析版） 題型：閱讀理解

Futurologists predict that life will probably be very different in 2050.

TV channels will have disappeared. Instead, people will choose a program from a “menu” and a computer will send the program directly to the television. Today, we can use the World Wide Web to read newspaper stories and see pictures on a computer thousands of kilometers away. By 2050, music, films, programs, newspapers, and books will come to us by computer.

Cars will run on new, clean fuels and they will go very fast. Cars will have computers to control the speed and there won’t be any accidents. Today, many cars have computers that tell drivers exactly where they are. By 2050, the computer will control the car and drive it to your destination. Space planes will take people halfway around the world in 2 hours. Today, the United States Space Shuttle can go into space and land on Earth again. By 2050, space planes will fly all over the world and people will fly from Los Angeles to Tokyo in just 2 hours.

Robots will have replaced people in factories. Many factories already use robots. Big companies prefer robots — they don’t ask for pay rises or go on strike, and they work 24 hours a day. By 2050, we will see robots everywhere — in factories, schools, offices, hospitals, shops and homes.

Medical technology will have conquered many diseases. Today, there are devices（設(shè)備）that connect directly to the brain to help people hear. By 2050, we will be able to help blind and deaf people to see and hear again.

Scientist will have discovered how to control genes（基因）. Scientists have already produced clones of animals. By 2050, scientists will be able to produce clones of people, and decide how they look, how they behave and how clever they are. Scientists will be able to do these things, but should they?

1.We can learn from the passage that some big companies prefer robots to human workers, because human workers __________.

A．often ask for more pay

B．can work 24 hours a day

C．a(chǎn)re not clever enough

D．a(chǎn)re often late for work

2.The underlined word “conquered” in Paragraph 5 most probably means ________.

A．discovered

B．treated

C．caused

D．cured

3.It can be inferred from Paragraph 5 that _________.

A．few diseases will attack people by 2050

B．there will be no blind and deaf people by 2050

C．medical technology will be more effective by 2050

D．devices are connected directly to the brain to help people hear

4.What is the author’s attitude towards the cloning technology?

A．The author does not support the use of cloning technology.

B．The author thinks human cloning is impossible.

C．The author does not really support the idea of human cloning.

D．The author is quite excited about human cloning.

5.According to the passage, which of the following can be realized today?

A．Read newspapers on a computer.

B．Make a space shuttle to go into the land.

C．Use computers to control car speed.

D．Choose TV programs freely from a “menu”.

 

查看答案和解析>>

科目：高中英語 來源：2013屆江蘇省淮安七校高二上學(xué)期期中考試英語試題 題型：書面表達(dá)

書面表達(dá)（滿分25分）

最近有科學(xué)家宣布他們已經(jīng)成功的克隆了第一例人類的胚胎，此舉引發(fā)了人們的極大爭議與廣泛關(guān)注。你們班級的同學(xué)也就此進(jìn)行了激烈的討論。請你根據(jù)下表所示的信息，將討論結(jié)果以信件形式告之你的朋友，并表達(dá)自己的觀點(diǎn)。

話題

Human cloning: To be or not to be?

觀點(diǎn)及支持率

35%: pro-cloning

65%：anti-cloning

理由

1.克隆出來的人可以幫我們分擔(dān)自己的事務(wù)，如做作業(yè)等。

2.我們可以利用克隆人的器官來治療病人。

1.克隆人是不道德的，克隆出來的人也是人，很有可能會不受我們控制，因而我們不該自己制造麻煩。

2.克隆人會使得人口數(shù)量劇增，造成很多社會問題。

自己觀點(diǎn)

1. ……；

2. …….

   注意：字?jǐn)?shù)120左右（開頭和結(jié)尾已給出，不記入總字?jǐn)?shù)）

 

Dear Tom,

   A recent announcement by scientists that they have successfully cloned the first human embryo has caused much debate and has shocked many people around the world. Our class

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________        

Yours

                                                                         Jack

 

查看答案和解析>>

科目：高中英語 來源：20102012遼寧葫蘆島一高高二下學(xué)期第二次月考英語試題 題型：閱讀理解

With only about 1, 000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species(物種). 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.

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

A. make efforts to clone the endangered pandas

B. save endangered animals from dying out

C. collect DNA of endangered animals to study

D. transfer the nuclear of one animal to another

2.

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

A. available panda eggs   B. host animals  C. qualified researchers   D. enough money

3.

 The best title for the passage may be _______.

A. China’s Success in Pandas Cloning   

B. The First Cloned Panda in the World

C. Exploring the Possibility to Clone Pandas

D. China —the Native Place of Pandas Forever

4.

From the passage we know that _______.

A. Kraemer and his team have succeeded in cloning a dog

B. scientists try to implant a panda’s egg into a rabbit

C. Kraemer will work with Chinese scientists in clone researches

D. about two thousand of species will probably die out in a century

  

 

查看答案和解析>>

科目：高中英語 來源：20102011福建省高二下期末模塊測試英語試題 題型：單項填空

The people who objected to cloning human beings went on strike and _________ the traffic.

A. cut through          B. faded out       C. held on          D. held up

 

查看答案和解析>>

同步練習(xí)冊答案