Question

If you dream of going someplace warm to escape the cold winter weather,a trip to a recently discovered planet would certainly warm you right up.The planet,named

OGLE-TR-56b,has temperatures of more than 3,000°F.“This is the hottest planet we know about,”says Dr Dimitar Sasselov,a scientist who led the discovery team.“It is hot enough to have an iron fog and to rain hot iron droplets(細沫).”

The new planet is 30 times farther away than any planet discovered by scientists

 before.It is in the Milky Way(銀河)but it is not in our solar(太陽的)system.The new planet moves around a star much like our sun,however scientists discovered the planet by using a new planet?searching method called transit technique.They were able to catch sight of the planet when it moved in front of its star,causing the star's light to dim(變暗).Scientists compare the method to discovering the shadow of a bee flying in front of a searchlight 200 miles away.“We believe the door has been opened wide to go and discover planets like the Earth,”says Sasselov.

1.We can infer from the passage that_________.

A.there is iron on the new planet

B.we could go to the new planet in winter

C.the star could block our view of the new planet

D.scientists are studying the weather

2.The “transit technique”can_____________.

A.help dim the light of a star

B.help scientists with a searchlight

C.help discover a bee on a planet

D.help find a planet moving before its star

3.Which is the best title for the passage?

A.New Planet searching Technique

B.New Distant Discovery

C.Space Searching

D.Dream Planet

Answer 1

1----3    CDB       

解析:

1.此題考查考生進行推理判斷的能力。文中第一段最后作者提到的iron fog只是一種比喻，來表明這顆行星溫度之高，并不能由此推斷它的上面有鐵。A是不成立的。文中第一句話：如你夢想著去一個溫暖的地方以躲避寒冷的冬季，那么到新近發(fā)現(xiàn)的一個行星上去會讓你立刻暖和起來。這句話是為了引起下文，不能作為推斷的依據(jù)，因此，B選項錯誤。D選項說科學家們正在研究這顆新星上的天氣情況，文中沒有提及。文中第二段：科學家們用一種叫做transit technique的新方法發(fā)現(xiàn)了這顆新星。這顆星圍繞一顆類似太陽的恒星運轉(zhuǎn)。當它轉(zhuǎn)到這顆恒星前面時，使得恒星的光變暗，這時他們就能看見它了。C選項：這顆恒星會阻擋我們的視線，使我們看不到新星。這個推斷是正確的。答案為C。 

2.其中的D選項與上題觀點一致，也就是用來發(fā)現(xiàn)新星。答案為D。

3.這道題考查考生概括文章主旨大意的能力。對于這類題，最好的方法就是用假設(shè)的方法去判斷。因為標題應(yīng)該在最大程度上覆蓋全文。此篇文章主要圍繞這顆新星的發(fā)現(xiàn)展開。答案為B。