Question

    A solar-powered airplane finished its first international flight from Switzerland to Belgium. This is a big step for solar power. Solar energy is clean and useful and you can find it everywhere. But what is solar energy? How do we use it? Let’s find out.

Have you ever seen houses with shiny boards on the roofs? Those families are using solar power.

     Solar power converts (转换) the sun’s energy which is said to be greater than the other energy used by all humans all the year. People can convert solar power into heat and electricity.

In the 1830s, British scientist John Herschel used a solar collector to cook food in Africa. This is said to be human’s first try at using solar energy. Today, people use it for many things.

Solar energy can light streets, warm houses and heat water. Unlike other resources, the sun’s energy will run out for billions of years.

Australian students from the University of New South Wales made a solar-powered car on their own. It reached a speed of 120 km per hour. The car uses the same amount of electricity as an oven (微波炉). Moreover, American scientists made a solar-powered nanosatellite (微型卫星). Scientists sent it into space in 2012 to try to find Earth-like planets.

However, solar power has its problems. The amount of sunlight that reaches the Earth’s surface changes because of time and weather.

根据上面短文内容填空。

1.It is _________ for a solar power when _________ flew from Switzerland to Belgium.

2.Solar power can be converted into _________ and it is _________ among all the energy people use all the year.

3.John Herschel, a scientist from _________ cooked food with a solar collector in Africa. And this is the first time for humans to _________.

4.Although solar energy can do many things for humans such as lighting streets, _________, people will _________ it billions of years later.

5.Australian students made a solar-powered car by _________ while American scientists made a nanosatellite which _________ into space in 2012.

Answer

1. a big step a solar-powered airplane

2. heat and electricity the greatest

3. British try at using solar energy

4. warm houses and heat water run out of

5. themselves was sent

【解析】

本文介绍了太阳能的作用以及人类利用太阳能的一些实例。

1.

句意：当一架太阳能飞机从瑞士飞到比利时时，这对于太阳能来说是迈出了一大步。

根据A solar-powered airplane finished its first international flight from Switzerland to Belgium. This is a big step for solar power，可知，一架太阳能飞机完成了它首次从瑞士到比利时的国际旅行，这对于太阳能来说是迈出了一大步，所以第一个空格填a big step，第二空格填a solar-powered airplane。故答案为a big step，a solar-powered airplane。

2.

句意：太阳能可以被转化成电能和热能，它是人们全年使用的最大能量。

根据People can convert solar power into heat and electricity，可知，太阳能可以被转化成热能和电能，所以第一个空格处填heat and electricity。根据Solar power converts (转换) the sun’s energy which is said to be greater than the other energy used by all humans all the year，可知，它是人类全年使用的最大能量，三者以上的比较用最高级，所以第二个空格填the greatest。故答案为heat and electricity, the greatest。

3.

句意：约翰·赫歇尔，一位来自英国的科学家在非洲用太阳能集热器做饭。这对于人类是第一次尝试使用太阳能。

根据In the 1830s, British scientist John Herschel used a solar collector to cook food in Africa. This is said to be human’s first try at using solar energy，可知，英国科学家约翰·赫歇尔在非洲用太阳能集热器做饭。据说是人类第一次尝试使用太阳能，所以第一个空格填British，第二个空格填try at using solar energy。故答案为British，try at using solar energy。

4.

句意：尽管太阳能可以为人类做许多像照亮街道，温暖房屋和加热水这样的事情，但是人类会在数亿年后耗尽它。

根据Solar energy can light streets, warm houses and heat water，可知，太阳能可以照亮街道，温暖房屋和加热水，所以第一个空格填warm houses and heat water。根据Unlike other resources, the sun’s energy will run out for billions of years，可知，数亿年后人类将耗尽它，run out和run out of都表示“耗尽”，run out是不及物动词短语，run out of是及物动词短语，空格后接宾语it，所以第二个空格填run out of。故答案为warm houses and heat water，run out of。

5.

句意：澳大利亚学生自己做了一辆太阳能汽车，而美国科学家做了一个在2020年被发射到太空的微型卫星。

根据Australian students from the University of New South Wales made a solar-powered car on their own，可知，来自新南威尔士大学的澳大利亚学生自己做了一辆太阳能汽车，固定搭配：by oneself表示“独自”，反身代词要与句中的主语在人称单复数上保持一致，students是复数，所以第一个空格填themselves。根据Moreover, American scientists made a solar-powered nanosatellite (微型卫星). Scientists sent it into space in 2012 to try to find Earth-like planets，可知，美国科学家做了一个太阳能微型卫星，并在2012年发送至太空，此空格所在句子是一个定语从句，先行词是单数名词nanosatellite，在宾语从句中作主语，并且与谓语动词send是被动关系，原句中sent是一般过去时，所以此空应填一般过去时的被动语态，故第二个空填was sent。故答案为themselves, was sent。