题目内容
16.On April 9,2010,a solar-powered plane successfully made its first flight.It flew at a speed of 70km/h at a height of 1,200meters in the sky above Switzerland for 87 minutes.It is the first solar-powered plane in the world.A group of engineers,led by Bertrand Pic-card,a well-known pilot,made this plane.The solar-powered plane is different from the planes that we usually see.The plane has a thin body with two very big wings full of solar cells.It uses sunlight as its energy,but it was not easy to make such a plane.First of all,Bertrand Pic-card and his group members had to find out how to get energy from the sun.They used 12,000solar cells to catch the sunlight.Then they had to find a good way to store it.They used special batteries to store the energy.What's more,the plane should be light enough so that it would not use too much power.It should also be strong enough to hold its body to fly in the sky.They used the strongest and lightest materials to build the plane.It weighed 1,600 kg and only needed the power of a small car.
After this successful flight,Bertrand Piccard said,"The airplane has landed but we have not yet landed."Their next step is to have a non-stop flight around the world by 2013.Before they can do that,they will have to work out how the plane can store enough energy during the day and keep flying at night.Also,the team will have to watch the weather closely to make sure the plane can fly.
29.How long did the solar-powered plane fly in the sky on April 9,2010C?
A.9minutes.
B.70minutes.
C.87minutes.
D.1,200minutes.
30.Where is the energy of the solar-powered plane fromA?
A.The sun.
B.Air.
C.The moon.
D.Wind.
31.The first solar-powered plane weighedB.
A.1,200kg
B.1,600kg
C.12,000kg
D.16,000kg
32.When can the solar-powered plane take a non-stop flight around the worldD?
A.When it is light enough to fly in the sky.
B.When it is strong enough to hold its body to fly in the sky.
C.When it looks different from the plane that we usually see.
D.When it can store enough energy during the day and keep flying at night.
分析 短文讲了太阳能动力飞机成功地进行了首次飞行,详细的介绍了太阳能动力飞机的时速、重量,它的原理以及未来的发展方向.
解答 答案:29.C 细节理解题.根据第一段第一行句子It flew at a speed of 70km/h at a height of 1,200meters in the sky above Switzerland for 87 minutes.它飞在瑞士上空1200米,以70公里每小时的速度飞行了87分钟.可知太阳能动力飞机飞了87分钟.故选C.
30.A 细节理解题.根据第二段第一行句子It uses sunlight as its energy,but it was not easy to make such a plane.它以阳光为能源,但制造这样的飞机并不容易.可知太阳能动力飞机的能源来自太阳.故选A.
31.B 细节理解题.根据第二段第四行句子It weighed 1,600 kg.可知太阳能飞机重1600公斤.故选B.
32.D 细节理解题.根据最后一段第二行句子they will have to work out how the plane can store enough energy during the day and keep flying at night.他们必须计算出飞机如何在白天储存足够的能量,并在夜间保持飞行.可知当它在白天可以储存足够的能量,保持在夜里飞行.故选D.
点评 做题时首先对原文材料迅速浏览,掌握全文的主旨大意.其次,细读题材,各个击破.掌握全文的大意之后,细细阅读材料后的问题,弄清每题要求后,带着问题,再回到原文中去寻找、捕获有关信息.
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A slice of carrot looks like human eyes.And the science now shows carrots greatly help the blood go to the eyes.Often eating them is good for our eyes.
A tomato has four parts and is red.The heart has four parts and is red,too.All of the research shows tomatoes are really the best food for the blood and the heart Celery(芹菜)looks more like bones(骨头).It specifically makes bones strong.Bones are 23% Ca.If you don't have enough Ca in your diet,the bones will be weak.
Onions look like the body's cells (细胞).Today's research shows onions help take away waste things from all of the body cells.
You see,how important vegetables are!Maybe some of them don't taste good.But if you want to be healthy,you should eat as many as you can.You should have a balanced diet!
| Eating (71)vegetables | is Rood for our health. |
| Names of the vegetables | Functions (作用)of vegetables |
| Carrots | to help the blood (72)go to the eyes. |
| (73)Tomatoes. | to be the best food for the blood and the heart |
| Celery | to (74)make bones strong. |
| Onions | to help (75)take away waste things from all of the body cells |