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---Thank you for your timely help.
--- My pleasure. It is hardly      talking about.
A.worthyB.worthwhileC.worthD.useful
C

试题分析:句意:--谢谢你及时的帮助。--不用谢,不值得一提。D.useful“有用的”,不符合句意,ABC都是“值得的”,worth 是一个只能作表语的形容词, 意思为 “值……的” 、 “相当于……的价值的” 、 “有…… 价值的”“值得……的” 、后接名词、接动名词的主动形式。worthy 可作表语,也可作定语。作定语时意思为“有价值的”“值得尊敬的”“应受到 、 、 赏识的” ;用作表语时意思为“值得……的”“应得到……的” 、 ,其后接 of sth.,也可以后接 to do sth.,worthwhile 与 worthy 一样,既可作表语,又可作定语。表示某事因重要、有趣或受益大 而值得花时间、金钱或努力去做,一般做“值得的”“值得做的”“有意义的”解。用作表 、 、 语时,可接动名词或动词不定式。用于句型:It is worthwhile to do/doing sth.所以选C。
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Title: Chang’e 3
__小题1:__
It is a lunar exploration mission operated by CNSA, incorporating a robotic lander and China's first lunar rover.
Name Source
It was named after the goddess of the Moon, __小题2:__ up the names of Chang'e 1 and Chang'e 2.
 
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History
of
China’s Lunar Exploration Program
The program
In January 2004,it was formally established.
Chang'e 1
On 24 October 2007, it was launched and entered lunar orbit on 5 November.
On 1 March 2009, it was impacted into the surface of the Moon on purpose.
To help select a proper __小题3:__for Chang’e 3 lander, data about the entire lunar surface were gathered.
 
Chang’e 2
On October 2008, it was approved and launched __小题4:__ years later.
Its mission was to conduct research for Chang’e 3 soft landing.
Although __小题5:__designed, it was better equipped than Chang’e 1.
 
Chang’e 3
Started in March 2012, it achieved lunar orbit on 6 December 2013 and landed 8 days later, becoming the __小题6:__ probe to soft-land on the Moon since Luna 24 in 1976.
The objectives are to measure the structure and depth of lunar soil and investigate the lunar crust to a great __小题7:__.
Chang’e 5
A sample return mission planned for 2017.
Around 2025
A manned landing may be conducted.
 
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the rover
It was began in 2002 and completed in 2010, __小题8:__ about 120 kg with a payload capacity of 20 kg or so.
It has many __小题9:__, from analyzing soil samples to protecting itself.
After the first __小题10:__ with the moon on 14 December, it will stay on the moon for 3 months, exploring an area of 3 square km and travelling a maximum distance of 10 km.

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