根据短文内容,从方框中选出正确的单词并用其适当形式填空。(有两项多余)

however,become,successful,create,that,

hot,what,they,work,danger,star,besides

China's“artificial(人造的)sun”,the Experimental Advanced Superconducting Tokamak(EAST), has set a new world record. It ____1_____ worked for1056 seconds at a high temperature close to 70,000.000℃,which is about five times_____2____than the temperature of the real sun.

The high heat ____3_____ in a nuclear fusion reactor(核聚变反应堆),which is part of the EAST project. It reproduces the natural reactions(反应)_____4____ happen inside our sun and other ____5_____ . The scientists want to develop the artificial sun to provide near-endless clean energy. The EAST project has cost China more than $950 billion.Total costs will run over $1trillion this year.

Scientists around the world have been trying ___6______ best for many years to develop nuclear fusion.They say it is the best way to provide clean energy,as the nuclear fusion process needs no fossil fuels(化石燃料) and leaves behind no ____7_____ waste.If scientists can make it ____8_____ ,the world will become greener and cleaner. It also means the lower cost of fuels.

Nuclear fusion technology is still not developed enough ___9______ a global industry._____10____ .researcher Dr Gong Xianzu. a nuclear fusion scientist says the EAST project is an important step and that the recent operation lays the foundation(基础)for the running of a fusion reactor.

1._________ 2._________ 3._________

4._________ 5._________6._________

7._________ 8._________ 9._________

10._________

答案解析:

1. successfully

根据句子文章第一句可知,中国的“人造太阳”——实验型先进超导托卡马克装置(EAST)创造了新的世界纪录,也就是说,它的运行是成功的,因此,此处应该选择success,根据句型结构,应该用副词successfully修饰worked。

2. hotter

句子中提到“which is about five times 2 than the temperature of the real sun”,这里需要填入一个比较级形容词,与“five times”搭配表示倍数关系,且根据常识太阳的温度很高,所以这里应该是表示“更热”,用“hotter”。句意为“这大约是真实太阳温度的五倍多”。

3. is created

句子“The high heat 3 in a nuclear fusion reactor”中,需要填入一个动词表示“高热”是如何产生的,根据常识和语境,这里应该是“被产生”,且整篇文章为一般现在时,所以这里也用一般现在时的被动语态“is created”。句意为“高热是在核聚变反应堆中产生的”。

4. that

句子“It reproduces the natural reactions 4 happen inside our sun and other stars”中,需要一个关系代词来引导定语从句修饰先行词“natural reactions”,且该关系代词在定语从句中作主语,指代物,因此用“that”。句意为“它再现了发生在我们的太阳和其他恒星内部的自然反应”。

5. stars

根据句子“...happen inside our sun and other 5”,结合常识和语境,这里应该是指除了太阳之外的其他恒星,因此用复数形式“stars”。句意为“...发生在我们的太阳和其他恒星内部的自然反应”。

6. their

句子“Scientists around the world have been trying 6 best for many years to develop nuclear fusion”中,需要填入一个形容词性物主代词来修饰“best”,表示“他们尽最大的努力”,因此用“their”。句意为“多年来,世界各地的科学家一直在尽他们最大的努力开发核聚变”。

7. dangerous

句子“as the nuclear fusion process needs no fossil fuels and leaves behind no 7 waste”中,需要填入一个形容词来修饰“waste”,根据语境和常识,核聚变过程不产生危险废物,因此用“dangerous”的否定形式表示“不危险的”,但这里直接填“dangerous”与“no”搭配表示“没有危险的”。句意为“因为核聚变过程不需要化石燃料,也不留下危险的废物”。

8. work

上文提到核聚变是提供清洁能源的最佳方式:再根据语境可知,此处指如果科学家们能让其发挥作用,这个世界将会变得更环保、更清洁。work“发挥作用;产生效果”,符合语境。make sb.do sth.“使某人做某事”,为固定用法,故填动词原形 work。

9. to become

句子“Nuclear fusion technology is still not developed enough 9 a global industry”中,需要填入一个动词不定式来表示“还不够发展成为全球产业”,因此用“to become”。句意为“核聚变技术还不够发展成为全球产业”。

10. However

句子“10. researcher Dr Gong Xianzu, a nuclear fusion scientist says the EAST project is an important step...”中,根据语境和标点符号,这里应该是一个转折关系,表示尽管核聚变技术还不够成熟,但EAST项目仍然是一个重要步骤,因此用“However”表示转折。句意为“然而,核聚变科学家、研究员龚先祖博士说,EAST项目是一个重要步骤...”。注意这里“However”放在句首且首字母大写。