题目内容
16．Fifteen percent of US teenagers aged 12 to 17 who own mobile phones have received nude（裸体）or nearly nude images of someone they know，according to a survey released on Tuesday．Only four percent of mobile phone-owning（35）Ain that age group have sent sexually suggestive pictures of themselves，a practice known as"sexting，"（36）Dthe Pew Research Center's Internet & American Life Project．
The Pew survey found that girls and boys were equally as likely to have sent a suggestive picture to（37）Bperson and（38）Cteenagers were more likely to have engaged in"sexting．"
Eight percent of 17-year-olds with mobile phones have sent a sexually provocative（刺激的） image（39）Atexting and 30 percent have（40）Ba nude or nearly nude image on their phone．
Only four percent of 12-year-olds have sent suggestive images of（41）B．
Amanda Lenhart，a senior research specialist at Pew and the author of the report，said sexually suggestive images have become a（42）Dof"relationship currency"for teens．
"These images are（43）Aas a part of or instead of sexual activity，or as a way of starting or（44）Ca relationship with a significant other，"she said．"And they are also passed（45）Ato friends for their entertainment value，as a joke or for（46）B．"
"The desire for risk-taking and sexual exploration during the teenage years（47）Cwith a constant connection via mobile devices creates a'perfect storm'for sexting，"said Lenhart．
"Teenagers have always grappled with issues around sex and（48）D，but their coming-of-age mistakes transgressions have never been so easily（49）Aand stored for others to see，"she added．
The survey found that teens with unlimited text messaging plans were more likely to receive"sexts"（50）Aimages of people they know．About 75 percent of mobile phone owning teens have unlimited plans．
Among this group，Pew said 18 percent reporting receiving"sexts"（51）Bwith eight percent of teens on（52）Adata plans and three percent of teens who pay per message．
According to Pew，58 percent of 12-year-olds own a mobile phone and 83 percent teens aged 17（53）C．
Pew noted that a number of US states are grappling with how to（54）B"sexting"among minors and some legislatures（立法机关） have stepped in to consider laws that would downgrade charges from felonies（重罪） to misdemeanors（轻罪）．
Pew conducted telephone interviews with 800 teens aged 12 to 17 and their parents between June 26 and September 24．
| 35．A．teens | B．adults | C．students | D．parents |
| 36．A．referring to | B．reporting | C．saying | D．according to |
| 37．A．other | B．another | C．others | D．the other |
| 38．A．younger | B．fewer | C．older | D．more |
| 39．A．by | B．in | C．on | D．through |
| 40．A．accepted | B．received | C．sent | D．mailed |
| 41．A．others | B．themselves | C．himself | D．herself |
| 42．A．habit | B．system | C．method | D．form |
| 43．A．shared | B．limited | C．tasted | D．controlled |
| 44．A．remaining | B．gaining | C．maintaining | D．obtain |
| 45．A．along | B．by | C．as | D．for |
| 46．A．joy | B．fun | C．excitement | D．delight |
| 47．A．compared | B．followed | C．combined | D．went |
| 48．A．friendships | B．scholarships | C．relatives | D．relationships |
| 49．A．transmitted | B．transformed | C．formed | D．switched |
| 50．A．containing | B．concluding | C．including | D．concerning |
| 51．A．comparing | B．compared | C．connected | D．joined |
| 52．A．limited | B．unlimited | C．few | D．little |
| 53．A．have | B．same | C．do | D．too |
| 54．A．do with | B．deal with | C．remove | D．ban |
分析 本文使用一些有力的数据通过一项调查介绍了一种现在青少年之间互相发送性短信的社会现象．完成此次完形填空时，注重行文逻辑和青少年的心理活动特征是顺利成功的关键．
解答 ADBCA BBDAC ABCDA ABACB
35．A 考查逻辑思维能力．第一段里的那项调查说的非常明确，调查的对象就是12到17岁的青少年．故选择A项．
36．D 这一段是the Pew Research Center's Internet & American Life Project的一个调查结果，当然是"根据"这个调查得出：4%的这个年龄群的拥有手机的青少年曾经发送过有关自己的带有性暗示的图片．故用D项．
37．B 考查介词的含义和用法．短信当然是发给"另外"的一个人的．也就是another．Other后往往接一个名词的复数；others是个代词，其后不可能再有名词．The other指的是：两者中的另外一个．意思上ACD三项都不合适．
38．C 考查形容的含义词和逻辑关系．语境是：这项调查发现，男孩和女孩都有可能发送一些带有暗示性的图片给另外的人，而年龄较大的则更可能忙于发性短信．这要把握青少年的心理特点，一般来说年龄大的，胆子更大些．故用C项．
39．A 此题看似考查的是介词的含义和用法，实质上是考查text的用法．学生们往往只知道text是名词，意思是：文本，课文．而它在这儿根据上下文的意思和一般的常识可知是：发短信．故选A项，表示通过这种方式，相当于：by means of…．
40．B 此题的最具有迷惑性的是D项，然而我们知道，mail是邮寄的意思，合理的用法应该是：mail…to…，然而文中没有这样的字眼．根据常识，有发短信，就有接短信．再者，这里的"接"不是"接受"，而是"接到"．故用B项．
41．B 考查反身代词．因主语是4%的12岁的青少年，是复数，故这儿使用themselves．
42．D 考查近义词的名词词义的辨析及语义之间的逻辑关系．这句的语境是：对于青少年来说，发送带有性暗示的图片已经变成了一种沟通关系的"型式"（form），而不是"习惯"（habit），更不是"系统"（system）和"方法"（method）．最容易让人上当的A项和D项，然而根据我知道的常识，habit往往表示：个人的生活习惯；method则表示：有一定的理论基础的一整套的方法．故用D项．
43．A 检测的是动词词义的准确记忆与识别．既然是青少年之间相互发的图片，当然就是彼此"分享"（share）了．别的三项语意上都不符合逻辑．
44．C 同上一题一样，此题除了检测的是动词词义的准确记忆与识别外，还有词形及用法的考查．A项remain是系动词，其后常接形容词；而BD项的词义都是"得到"的意思．故选择C项
45．A 考查的是动词短语的词义和用法．由上一题的分析我们得知此空填上具有"传递"、"传送"之意的动词的被动形式，然而这四个动词短语只有pass along有这样的意思．具有迷惑性的是B项，但它表示"经过"、"路过"的意思．
46．B 考查名词近义词词义的辨析．由第10题的分析我们知道此空需填上和joke意思相近的名词，而这四项里AD两项同义，都是"高兴"之意；C项的意思是"兴奋、激动"；只有B项表示"玩乐"、"好玩"之意．故B项正确．
47．C 此题考查动词的词义及用法．语境是：伦哈特说："青少年时期有冒险和性探索的欲望，加上移动设备可以保持实时联系，这些条件创造了互发性短信的‘完美风暴'．"分析句子结构我们得知said的宾语从句的主语是the desire，谓语动词是creates，宾语是storm，而 with a constant connection via mobile devices根据语境只能是定语，又因为此四词中只有combine表示"把…．和…．结合起来"之意，与语境中的"加上"意思相符，combine的逻辑主语是句子的主语the desire，他们之间是被动关系，所以我们用动词的过去分词作后置定语，相当于定语从句：which is combined with constant connection via mobile devices．故选择C项．
48．D 考查上下文之间的逻辑思路的理清能力．语境是：青少年总在有关性和情感关系的问题上挣扎，但他们青少年时期所犯的错误和越轨行为从未像现在这样如此容易地被传播并被保存下来供别人‘分享'．在第六段里就提到青少年发性短信已经变成了关系疏通的一种方式．至四个词只有D项的意思是"关系"．故我们选择D项．
49．A 考查动词词义的准确记忆．由上一题得知，此空应该填上表示"传播"之意的动词．B项的意思：转变；form的意思是：形成；switch的意思是：转换．故A项正确．
50．A 考查的是动词近义词的辨析．根据语境：调查发现，那些订制无限量短信套餐计划的青少年更容易收到含有他们所认识的人的图片的性短信．约75%拥有手机的青少年订制了无限短信套餐计划，我们分析此处应是表示包含之意的动词的现在分词．A．containing：包含，含有（元素）；B．concluding：得出结论；C．including：包括（整体）；D．concerning：关于，牵涉到．故A为正确答案．
51．B 考查非谓语动词的用法．根据语境：18%的人称自己曾收到性短信，而在订制限量短信套餐计划的青少年中，这一比例仅有8%，在每条短信单独付费的青少年中，只有3%，我们发现此处需填上表示"比较起来"，也就是compared with．主要是因为compare的逻辑主语是18 percent，它们之间是被动关系，需用过去分词．故选择B项
52．A 也是考查非谓语动词的．由上一题的分析我们知道，此空的应该填上表示"受限制的"之意的词，也就是表示被动关系的过去分词limited，他的逻辑主语是data，它们之间也是被动关系．故选择A项．
53．C 考查动词的省略替代．语境是：根据皮尤调查中心的数据，12岁的青少年中有58%的人有手机，而在17岁的青少年中，这一比例为83%．意思是说此处填上表示83%的17岁的青少年和58%的12岁的青少年一样拥有手机．此四个词中能代表这个意思的只有do．故选择C项．
54．B 考查动词短语．语境是：皮尤调查中心指出，美国很多州都在试图解决未成年人发送性短信的问题，一些立法机构也介入其中，表示将考虑修改法律，把对这一行为的指控从重罪降为轻罪．此空填上表示"解决"，do with也是解决的意思，但是它跟what搭配；deal with刚好与how搭配．故选择B项．
点评 答题前一定要略读全文，把握文章要表达的主题，注意前后句与句，段落与段落之间的关系．答题中，一定要认真分析，注意选项与上下文的关系，与前后单词的关系．对于一时没有太大的把握的题可以放到最后再来完成，因为有时答案可以从下文内容体现出来．答完后再通读一遍文章，看看所选选项能不能是语句通顺，语意连贯．
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6．Swimming cycling，jogging，skiing，dancing，walking or any of dozens of other activities can help your heart．They all cause you to feel warm and breathe heavily without being out of breath．Whether it is a structured exercise program or just part of your daily routine，all exercise adds up to having a healthier heart．（36）G
☆Choose activities that are fun and add variety．Develop several activities that you can enjoy．（37）E
☆Wear comfortable，properly fitted shoes and comfortable，loose-fitting clothing appropriate for the weather and the activity．
☆Find a convenient time and place to do activities．（38）D．If you miss an exercise opportunity，work activity into your day another way．
☆Use music to keep yourself entertained．
☆（39）CDecide what kind of support you need．Do you want them to remind you to exercise？Exercise with you regularly or occasionally？Be understanding when you get up early to exercise？Spend time with the children while you exercise？Try not to ask you to change your exercise routine？Share your activity time with others．Ask your family members，friends or co-workers for help．
☆Don't overdo it，especially at first．You can slowly increase the time and intensity （强度） of your activities as you become more fit．（40）B
☆Keep a record of your activities．Reward yourself at times．Nothing will inspire you more than success!
☆Choose activities that are fun and add variety．Develop several activities that you can enjoy．（37）E
☆Wear comfortable，properly fitted shoes and comfortable，loose-fitting clothing appropriate for the weather and the activity．
☆Find a convenient time and place to do activities．（38）D．If you miss an exercise opportunity，work activity into your day another way．
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7．Have you ever wondered why there are so many skin colours in the world？Do you know why people living in particular areas usually have a certain colour？Biology and history are the two reasons for this．
Skin contains something called melanin，which determines a person's skin colour．The more melanin a person has，the darker his or her skin will be．The amount of and production of melanin are controlled by genes，but can be affected by other things，such as sunlight．If a person lives in a place with strong sunlight，his or her skin will protect itself by producing more melanin，making the skin darker．In a place with less sunlight，a person's body will produce less melanin，making the skin lighter．
Skin colour is also affected by another source-vitamin D．Humans all need vitamin D to build bones．People can get it by eating foods such as fish and milk，or from sunlight，which causes vitamin production in the skin．Melanin protects skin by absorbing sunlight，so sunlight absorbed by melanin cannot be used for vitamin D production．Therefore，a dark-skinned person will produce less vitamin D than a light-skinned person when they receive the same amount of sunlight．
The connection between vitamin D production and skin colour is clear when we look at evolution．The earliest humans lived in Africa，their dark skin covered with hair．When they moved to places that had less sunlight，their bodies produced less vitamin D because of their dark skin．As a result，their skin made less melanin，so they could get enough sunlight to produce vitamin D．Their skin gradually got lighter and they lost hair．Now，people who live in areas with strong sunlight，like Africa，have darker skin，while people living in other areas have lighter skin．The exception to this is the Inuit，who live in a place with little sunlight，but have dark skin because they eat a lot of fish and have enough vitamin D．
Evolution has given us a rainbow of skin colours．Humans have always had melanin to determine our skin colour．What has changed through history is the environment where we have lived．This has in turn changed our melanin production，and eventually，skin colour．
A World of Skin Colour
Skin contains something called melanin，which determines a person's skin colour．The more melanin a person has，the darker his or her skin will be．The amount of and production of melanin are controlled by genes，but can be affected by other things，such as sunlight．If a person lives in a place with strong sunlight，his or her skin will protect itself by producing more melanin，making the skin darker．In a place with less sunlight，a person's body will produce less melanin，making the skin lighter．
Skin colour is also affected by another source-vitamin D．Humans all need vitamin D to build bones．People can get it by eating foods such as fish and milk，or from sunlight，which causes vitamin production in the skin．Melanin protects skin by absorbing sunlight，so sunlight absorbed by melanin cannot be used for vitamin D production．Therefore，a dark-skinned person will produce less vitamin D than a light-skinned person when they receive the same amount of sunlight．
The connection between vitamin D production and skin colour is clear when we look at evolution．The earliest humans lived in Africa，their dark skin covered with hair．When they moved to places that had less sunlight，their bodies produced less vitamin D because of their dark skin．As a result，their skin made less melanin，so they could get enough sunlight to produce vitamin D．Their skin gradually got lighter and they lost hair．Now，people who live in areas with strong sunlight，like Africa，have darker skin，while people living in other areas have lighter skin．The exception to this is the Inuit，who live in a place with little sunlight，but have dark skin because they eat a lot of fish and have enough vitamin D．
Evolution has given us a rainbow of skin colours．Humans have always had melanin to determine our skin colour．What has changed through history is the environment where we have lived．This has in turn changed our melanin production，and eventually，skin colour．
A World of Skin Colour
| Brief introduction | People living in a particular area usually have the （71）sameskin colour and there are many different skin colours in the world． |
| Reasons for skin colour | The reasons for different skin colours mainly （72）lie/consist in biology and history． |
| Biological reasons | The amount of melanin，by which a person's skin colour is （73）determined，varies from people to people．The more melanin a person has，the （74）darkerhis or her skin will be． Vitamin D is another source （75）affectingskin colour．Vitamin D is necessary for humans to build bones．Sunlight contributes to vitamin D production in the skin． |
| （76）Historical reasons | The earliest people in Africa had dark skin with hair covering it because the sunlight is very strong．． When they moved to places where they could not get enough sunlight to （77）producevitamin D，their skin colour became lighter． Generally speaking，people in areas with strong sunlight，have darker skin （78）whilepeople in other areas have lighter skin． |
| （79）Conclusion/Summary | Melanin （80）playsan important role in our skin colour．With our living environment changing，melanin production is changed，which leads to the changes in our skin colour． |
4．In the winter of 1990，I was asked to appear on a television talk show in Toronto，Ontario，Canada．At the end of our first day of taping，I was on my way back to my 24-hour-room-service （36）B when I saw something shocking．
On the sidewalk in four inches of snow was a man （37）A with only a cardboard to keep him from being completely （38）Cto the freezing cold．What really broke my heart was when I （39）D that he wore no shoes and socks．
I wanted to stop and help him，（40）AI was not quite sure what to do．As the traffic light turned green，it seemed life was demanding that I （41）B．So I did．Back in"anything I wanted was mine"environment of my hotel，I immediately （42）Cabout the man on the street．Several days later，I was eating Danish at the station．All of the"important"people had （43）B the room and it was just me and the doorman remaining．
I had seen him （44）C go about his business every day without saying a word except，（45）D，When I asked him how he was （46）Ctoday，he told me that he'd been having to ride his bike to work in the snow and that he'd been feeling rather （47）C for himself…that is，until he saw a man sleeping down on the corner of the street with just a （48）B for covering from the cold and no shoes．I almost （49）D on my Danish as I heard him go on to relate how he was so moved with （50）A for the man that he bought the man a pair of socks and shoes．
As I heard his stay，I saw in my mind a （51）C that used to be in an old friend's bedroom when I was a teenager．It was a picture of a child _52_A someone a flower and the （53）D below read：'The （54）B deed often exceeds （胜过） the grandest of intentions．"As Mother Teresa （55）B it，"none of us can do anything great on our own，but we can all do a small thing with great love．"
On the sidewalk in four inches of snow was a man （37）A with only a cardboard to keep him from being completely （38）Cto the freezing cold．What really broke my heart was when I （39）D that he wore no shoes and socks．
I wanted to stop and help him，（40）AI was not quite sure what to do．As the traffic light turned green，it seemed life was demanding that I （41）B．So I did．Back in"anything I wanted was mine"environment of my hotel，I immediately （42）Cabout the man on the street．Several days later，I was eating Danish at the station．All of the"important"people had （43）B the room and it was just me and the doorman remaining．
I had seen him （44）C go about his business every day without saying a word except，（45）D，When I asked him how he was （46）Ctoday，he told me that he'd been having to ride his bike to work in the snow and that he'd been feeling rather （47）C for himself…that is，until he saw a man sleeping down on the corner of the street with just a （48）B for covering from the cold and no shoes．I almost （49）D on my Danish as I heard him go on to relate how he was so moved with （50）A for the man that he bought the man a pair of socks and shoes．
As I heard his stay，I saw in my mind a （51）C that used to be in an old friend's bedroom when I was a teenager．It was a picture of a child _52_A someone a flower and the （53）D below read：'The （54）B deed often exceeds （胜过） the grandest of intentions．"As Mother Teresa （55）B it，"none of us can do anything great on our own，but we can all do a small thing with great love．"
| 36．A．station | B．hotel | C．home | D．studio |
| 37．A．sleeping | B．sighing | C．begging | D．praying |
| 38．A．limited | B．accustomed | C．exposed | D．addicted |
| 39．A．feared | B．suspected | C．imagined | D．realized |
| 40．A．but | B．and | C．or | D．so |
| 41．A．get off | B．move on | C．turn back | D．pull over |
| 42．A．thought | B．talked | C．forgot | D．learned |
| 43．A．fled | B．left | C．entered | D．crowded |
| 44．A．lazily | B．freely | C．quietly | D．actively |
| 45．A．complaints | B．comments | C．apologies | D．greetings |
| 46．A．performing | B．working | C．feeling | D．coming |
| 47．A．shy | B．fortunate | C．sorry | D．happy |
| 48．A．blanket | B．cardboard | C．quilt | D．sheet |
| 49．A．concentrated | B．insisted | C．chewed | D．choked |
| 50．A．sympathy | B．respect | C．admiration | D．sorrow |
| 51．A．booklet | B．letter | C．poster | D．notice |
| 52．A．handing | B．returning | C．donating | D．sending |
| 53．A．note | B．illustration | C．description | D．caption |
| 54．A．greatest | B．smallest | C．wisest | D．funniest |
| 55．A．means | B．puts | C．makes | D．gets |
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1．To tweet，or not to tweet？
A guide to the social networking/microblogging service Tewitter
SINCE its creation in 2006，Twitter，the social networking service，has taken cyber space by storm．At first glance it might seem like Facebook，but Twitter is in a league of its own，connecting people with fast-paced updates．It has become a place for activities，celebrities，businesses and everyday people to let others know about videos，opinions，interesting news，advertisements-and，yes what they are eating for lunch．
Twitter：n．a free social networking service that connects users through fast-paced status updates．Twitter-er：n．one who uses Twitter．Tweet：n．short updates or messages，of 140characters or less，wh ich are posted on your profile and sent to your followers．Retweet （RT）：n．unofficial Twitter feature that indicates a re-posting of a tweet from another user．Often uses the text RT@username （of the original source） before the post．Follower：n．one who receives another user's updates on his or her Twitter profile．Direct message：n．a private message sent from one Twitter-er to another．
The phenomenon includes a host of new vocabulary terms and concepts that every self-respecting Twitter-er should know．Here's a quick course on Twitter．
So you've finally been swept up by the techno-tide and gotten a Twitter account．But what to write？Who knew 140characters could be so overwhelming？
Darren Rowse of the TwiTip blog（www．twitip．com） recommends a two-step tweeting process：figure out what your follows want，and then give it to them．Some combination of cool links，conversation-starting quotes or questions，retweets and photos works well，Rowse writes．
Keep in mind that Twitter doesn't directly offer photo hosting．You will need to use a third-party site like TwitPic （www．twitip．com） to upload your photos．Other sites，like TwitVid （tweetdeck．com/beta） can be used to post videos．
If you th ink the Twitter Web Site too complicated，try a Twiiter client-Tweetdeck（tweetdeck．Com/beta） and the Mac-only Tweetie（www．stebits．com）are popular，and both also are available as iPhone apps（应用程序）．
Even without an iphone，you can update you Twitter on the go．After adding your phone number to your Twitter account，you can text updates to 40404（check Twitter's Web site for numbers to use outside the United States）But no matter how you tweet，remember that people can see what you post，and Twitter might not be the best place to complain about your boss，even if you make your Twitter private，your followers may not share your sense of discretion．
Twitter is crowded with celebrith accounts．The famous，who once avoided the media in their private lives，are posting everything on Twitter for all the cyber world to see，gathering followers in the millions．Who's leading the celebrity pack？TwitterCounter（www．twittercounter．com），a site that tracks the most popular Twitter users，lists Ashton Kuntcher and former fashion model，as the nost popular Twitter-er with，as of our publication date，2，691，112followers．
Title：To tweet，or not to tweet？
A guide to the social networking/microblogging service Tewitter
SINCE its creation in 2006，Twitter，the social networking service，has taken cyber space by storm．At first glance it might seem like Facebook，but Twitter is in a league of its own，connecting people with fast-paced updates．It has become a place for activities，celebrities，businesses and everyday people to let others know about videos，opinions，interesting news，advertisements-and，yes what they are eating for lunch．
Twitter：n．a free social networking service that connects users through fast-paced status updates．Twitter-er：n．one who uses Twitter．Tweet：n．short updates or messages，of 140characters or less，wh ich are posted on your profile and sent to your followers．Retweet （RT）：n．unofficial Twitter feature that indicates a re-posting of a tweet from another user．Often uses the text RT@username （of the original source） before the post．Follower：n．one who receives another user's updates on his or her Twitter profile．Direct message：n．a private message sent from one Twitter-er to another．
The phenomenon includes a host of new vocabulary terms and concepts that every self-respecting Twitter-er should know．Here's a quick course on Twitter．
So you've finally been swept up by the techno-tide and gotten a Twitter account．But what to write？Who knew 140characters could be so overwhelming？
Darren Rowse of the TwiTip blog（www．twitip．com） recommends a two-step tweeting process：figure out what your follows want，and then give it to them．Some combination of cool links，conversation-starting quotes or questions，retweets and photos works well，Rowse writes．
Keep in mind that Twitter doesn't directly offer photo hosting．You will need to use a third-party site like TwitPic （www．twitip．com） to upload your photos．Other sites，like TwitVid （tweetdeck．com/beta） can be used to post videos．
If you th ink the Twitter Web Site too complicated，try a Twiiter client-Tweetdeck（tweetdeck．Com/beta） and the Mac-only Tweetie（www．stebits．com）are popular，and both also are available as iPhone apps（应用程序）．
Even without an iphone，you can update you Twitter on the go．After adding your phone number to your Twitter account，you can text updates to 40404（check Twitter's Web site for numbers to use outside the United States）But no matter how you tweet，remember that people can see what you post，and Twitter might not be the best place to complain about your boss，even if you make your Twitter private，your followers may not share your sense of discretion．
Twitter is crowded with celebrith accounts．The famous，who once avoided the media in their private lives，are posting everything on Twitter for all the cyber world to see，gathering followers in the millions．Who's leading the celebrity pack？TwitterCounter（www．twittercounter．com），a site that tracks the most popular Twitter users，lists Ashton Kuntcher and former fashion model，as the nost popular Twitter-er with，as of our publication date，2，691，112followers．
Title：To tweet，or not to tweet？
| Introductionto Twitter | （71）Created/Launched/Originated/Started in 2006，twitter，the soclal networking service，has enjoyed（72）popularity/success/fame among the cyber world． |
| Basic Twitter（73）terms/vocabulary/terminology | ●twitter ●twitter-er ●tweet ●retwwet |
| （74）recommendation（s）/advice to tweet your tweets | ●Follow a two-step tweeting process，according to the （75）Tips/Hints/How/Ways of Darren Rowse． ●Use a third-party site to upload your photos and post videos． ●Try Twitter clients to help you （76）use/with/understand Twitter，among which the Tweet-deck and the Mac-only Tweetie are well （77）receive． ●Add your phone number to your Twitter account if you don't have an iPhone． ●Be（78）cautious/careful/watchful/mindful of what you post even if your twitter is made private |
| Celebrity twitter-ers | Celebrties now are （79）crazy/wild/enthusiastic/keen/mad about tweeting，among whom Ashton Kutcher is the most popular，（80）followed/watched by the largest number of twitter users． |
5．--Let's go out for a walk after dinner，OK？
---_______．I'd like to take a fresh breath．（ ）
---_______．I'd like to take a fresh breath．（ ）
| A． | Out of the question | B． | Forget it | ||
| C． | That's all right | D． | I couldn't agree more |
6．Only when we have enough"input"_________ excellent"output"-speaking and writing in English．（ ）
| A． | did we present | B． | can we present | C． | present we | D． | we can present |