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．“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(细沫)．” 　　The new planet is 30 times farther away than any planet discovered by scientists before．It is in the Milky Way(银河)but it is not in our solar(太阳的)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(变暗)．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 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 on the new planet (2) The“transit technique”can ________． [　　] A． help dim the light of a star B． help scientists with a searchlight C． help scientists 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

答案：1．C;2．D;3．B;
解析：

(1)	文章第一段提及该行星是我们知晓的最热的一颗．“It is hot enough to have an iron fog and to rain hot iron droplets”描述的是高温可以让铁汽化，并非说行星上有铁，如此高温人类也无法接近，因此排除A、B两项；文中没有提到科学家在研究这一行星的气候一事，所以排除D项；文中所叙“They were able to catch sight of the planet, when it moved in front of its star, causing the star's light to dim．”“卫星运行到其恒星前面时会使恒星的光线变暗，同理当运行到恒星后面时，自然会被其遮住”．故选C项．
(2)	“transit technique”是科学家寻找行星的新方法，文中打了比方，对着200英里外的探照灯，人们会发现蜜蜂飞过时的影子．同理，行星运行到其恒星前面时，也会留下阴影，从而被人发现．因此答案选D项．
(3)	这是一道考查文章主旨大意的题目．通读全文后，我们了解到，科学家有了最新的发现，一颗迄今最热的行星，以及发现行星的新方法．A项内容只是文章的一部分；C项内容范围太大；D项没有紧扣文章，故选B项．