Chinacreatedtwoclonedmonkeys

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没想到“孙大圣拔毫毛变小猴”竟然成真了。近日中国科学家们干了件大事儿：成功培育出了全球首个体细胞克隆猴。这项成就除了在基础研究上有重大意义，令我国目前在该领域处于国际领跑地位之外，还会对开发治疗人类疾病的新疗法起到巨大的促进作用。

文章词数 3 0 5 建议用时 6′ 难度指数 ★★★★

China became 1._______first country to clone a monkey using non-reproductive cells,scientists said on Thursday.By December 2017,the Chinese AcademyofScienceshad created two cloned macaques(猕猴)named “Zhong Zhong”and“Hua Hua”by nuclear transferring(核移植)of body cells.Thiswas similar tothe technology 2._______(use)to create the famous cloned sheep Dolly in 1996.

Telra,a monkey born in 1999,is the world’s first ever-cloned monkey,3.________it was done using a simpler method called embryo splitting(胚胎分裂)，and cannot be genetically modified to suit experimental needs.Cloning a monkey using body cells has been a world-class challenge because it is a primate(灵长类)that 4.________(share)its genetic makeupwithhumans.

For drug and other lab tests,scientists have to purchase monkeys from allover the world,5.________is costly,bad for the environment and produces inaccurate results because each monkey might have different genes.

科学家周四表示，中国成为第一个使用非生殖细胞克隆猴子的国家。到2017年12月，中国科学院通过体细胞核移植，培育出了两只克隆猕猴，命名为“中中”和“华华”。这与1996年培育出的著名的克隆羊Dolly的技术十分相似。

生于1999年的恒河猴Telra是世界上第一只克隆的猴子，但是使用的是胚胎分裂技术这种更简单的方法，不能通过基因改造来满足实验需要。用体细胞克隆猴子一直是一个世界性的难题，因为猴子作为一种灵长类动物，和人类一样有着共同的基因构成。

对于药物和其他实验室测试而言，科学家必须从世界各地购买猴子，这不仅成本高，不利于环境，而且实验结果也不准确，因为每只猴子可能带有不同的基因。

By cloning monkeys using body cells,6.______(science)can mass-reproducealargenumber ofmonkeys of similar genes in a short period,and they can even change the monkeys’genes to suit 7._________(they)needs.This can save time,cut downexperiment costs,and produce more accurate results,leading tomore effective medicine.

Sun Qiang,who wasin charge ofthe project,said most of the drugs 8._________(try)on lab mice.However,drugs that work on mice might not work or even have side effects on humans because the two species are so 9._______(difference).

Monkeys and humans are both primates,so they are much 10.________(close)related and testing on monkeys is supposed to be as effective as testing on humans.This achievement will help China lead the world research in an international science project related to the study of primate brains.

通过利用体细胞克隆猴子，科学家可以在短时间内培育大量基因相似的猴子，甚至可以根据需要改变它们的基因。这样可以节省时间，降低实验成本，产生更准确的结果，从而研发出更有效的药物。

项目负责人孙强表示，目前大多数药物试验都是在实验室小鼠身上进行的。然而，对老鼠起作用的药物可能不会对人类起作用，甚至可能会产生副作用，因为这两个物种相差太远。

猴子和人类都是灵长类动物，因此它们之间有着密切的联系，在猴子身上进行测试应该和在人类身上进行测试一样有效。这一成果将帮助中国在与灵长类大脑研究相关的国际科学项目中处于领跑地位。

Reading check

Read the passage and fill in each blank with only one word or with the words given in correct forms.

Language study

1.be similar to与……相似

让我们假定有另外一个行星和地球的条件相似。

Let us suppose another planet with conditions________________________on the earth.

2.share...with...与……分享……

在朋友方面，我渴望那些可以和我分享快乐的朋友。

When it comes to friends,I desire those who will________________________me.

3.a number of...许多……（修饰可数名词）

在这次运动会上，他们打破了许多纪录。

They have broken________________________________in the sports meeting.

4.cut down减少；砍倒

为了减少开支，他们两个决定住在一个房间里。

________________________the expense,the two decided to share the same room.

5.lead to导致；通向

继续向前走，你就会看到一条通向山顶庙宇的小路。

Go ahead and you will see a path________________the temple on top of the hill.

6.in charge of...负责……；in the charge of...被……负责

我们需要选一位负责体育训练的人。

We need someone to________________________________our physical training.