72．According to the passage , how many planets in our Galaxy might be inhabitable ?
A．5 billion . B．10 billion . C．15 billion . D．200 billion .
73．The first paragraph in this passage is mainly about .
A．how scientists are looking for signs of life on other planets
B．why scientists are looking for signs of life on other planets
C．where scientists are looking for signs of life on other planets
D．when scientists are looking for signs of life on other planets
74．The underlined word " monitor" in the 2nd paragraph means .
A．find B．follow C．check D．form
75．Which of these statements is true based on the information in the passage ?
A．The earth is one of the oldest planets in our Galaxy .
B．Most scientists believe that there is intelligent life on other planets .
C．Scientists are trying different ways to find signs of life on other planets .
D．Scientists don't believe that there might be life on other planets .
第Ⅱ卷（共35分）
第四部分：写作（共两节，满分35分）
第一节： 短文改错（共10小题；每小题1分，满分10分）
此题要求改正所给短文中的错误.对标题号的每一行做出判断：如无错误，在该行右边的横线上划（√）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（^），在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
Last night I was lonely at home because my husband took 76．
Ann , my daughter , for New York to see his parents. At 8:00 77．
I decided to look at a TV programme . I turned the TV set and 78．
started to look at a TV play . I am usually not interested in 79．
TV plays but I was complete delighted with this one . I was 80．
enjoying it very well when something was happened to the 81．
picture . I tried hard to adjust (调) the set because I want to 82．
see who turned off to be the murderer , but the set was out of 83．
order and the picture was so bad that I finally had to give in , 84．
turn off the set and go to bed at nine , much early than usual . 85．
第二节 书面表达（满分25分）
随着网络的发展，目前很多人在新年时给亲朋好友发电子贺卡，而不再用纸制贺卡。
请根据以下提示，阐述电子贺卡的优越性。
1．与传统的贺卡相比，电子贺卡更活泼有趣。
2．不仅可以看到动画，还可以听到声音。
3．传递速度快。
4．网址很多，可发不同的贺卡。
5．如果你对那些贺卡不感兴趣，还可以用flash或其他软件自己设计贺卡。
6．随着电子贺卡的普及，很少用纸制贺卡，对保护环境是一大贡献。
注意：文章应包括以上要点，要适当发挥， 不要逐条翻译。
词数：100词左右。
生词：电子贺卡：electronic card ; 动画：animation
软件：software
