15．Teens For Planet Earth
This is a social networking site for teenagers who want to get involved in protecting our planet．They can connect with other green-minded teens，choose a project or create their own．Teens For Planet Earth encourages young folks to get busy in their own communities．They offer guidance on local projects with categories such as habitats，animals，water and education．Awards are given to active members．
Meez
At Meez，teens can create their own avatars （頭像），rooms and virtual pets．It is a social community of creative people that combines avatars，virtual worlds and games．Meez offers contests and chat as well as homework help，a fashion central and a writers'corner．A chat area for younger teens is available．Other areas are music，geek （極客） central，art and sports．
Cyberteens
Cyberteens is another cool site that celebrates the teen years．Here teenagers can find community，games，and news．There is a link called"creativity"where teens can share their poems，stories，photos and artwork．The"cool links"section offers a huge variety of options to the curious teens．This site also has surveys and helps with jobs and school work．
Student．com
Student．com is a resource site for teens and high school students．Its social network has over 900，000members．Members earn points to win prizes just by browsing and they offer several multi-player games．Points are used to buy items at auction （拍賣會）．Student．com is filled with useful information and articles．

21．What is Teens For Planet Earth aimed to？D
A．Set up a project．
B．Give awards to teens．
C．Get young folks busy．
D．Give advice on local projects．
22．Which website offers assistance in jobs？C
A．Teens For Planet Earth．
B．Meez．
C．Cyberteens．
D．Student．com．
23．What makes Student．com special among these websites？D
A．It has the most members．
B．Teens can read articles on it．
C．It offers help on school work．
D．Teens can make purchases on it．
24．What can we infer about the websites mentioned in the text？B
A．They provide game platforms．
B．They benefit teens in their social life．
C．They award outstanding teens．
D．They offer various study guidance．

分析 本文主介紹了四個在社會生活方面提供給年輕人各種幫助的網(wǎng)站．

解答 21．D 細節(jié)理解題．根據(jù)第一段：They offer guidance on local projects with categories such as habitats，animals，water and education．他們?yōu)楫?dāng)?shù)氐捻椖刻峁┲T如棲息地、動物、水和教育等方面的指導(dǎo)．他們?yōu)椴糠猪椖窟M行指導(dǎo)，所以答案選D．
22．C 細節(jié)理解題．根據(jù)句子：This site also has surveys and helps with jobs and school work．這個網(wǎng)站也有調(diào)查和幫助工作和學(xué)校工作．可知網(wǎng)站對工作和學(xué)業(yè)提供幫助．所以答案選C．
23．D 細節(jié)理解題．根據(jù)句子：Points are used to buy items at auction （拍賣會）．可知這個網(wǎng)站可以用來買東西，所以答案選D．
24．B 推理判斷題．結(jié)合全文，四個在社會生活方面提供給年輕人各種幫助，所以答案選B．

點評 本文考查細節(jié)題為主，細節(jié)題可以在文章中直接找到與答案有關(guān)的信息？或是其變體．搜查信息在閱讀中非常重要它包括理解作者在敘述某事時使用的具體事實、數(shù)據(jù)、圖表等細節(jié)信息．在一篇短文里大部分篇幅都屬于這類圍繞主體展開的細節(jié)．做這類題一般采用尋讀法？即先讀題，然后帶著問題快速閱讀短文，找出與問題有關(guān)的詞語或句子，再對相關(guān)部分進行分析對比，找出答案．

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7．
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