The machine named curiosity has already been used to eexplore the Mars.hoping to find signs of life there．题目和参考答案——青夏教育精英家教网—

题目内容

18．The machine named"curiosity"has already been used to eexplore the Mars，hoping to find signs of life there．

分析这台名为"好奇号"的机器已经被用来探索火星，希望在那儿能找到生命迹象．

解答答案：explore 考查首字母填空．根据句意及句子结构，要填入动词，explore意为"探索"，在动词不定式to后用动词原形．

点评考查首字母填空．准确地翻译句子、理解句子，然后根据句意及提示完成句子，使句意更通顺．

练习册系列答案

9．After having more than a few acquaintances （熟人）online，itmight come a blow to keen social networkers like Barack Obama，or even Facebook founder Mark Zuckerberg himself．
According to a research，the average person has in fact twice as many online friends as physical ones．Users of social-networking sites have on average 121online friends as compared with physical ones．The study also claims that people tend to be more open，confident and honest with their virtual friends than their"real"ones．
"For most people，the Internet is a way of keeping in touch with loved ones and friends，but for people who are isolated due to illness，it plays a more vital role，and can often act as a lifeline．"says Helen Oxley，a psychologist at Wythenshawe hospital．
"People with illnesses often rely on the Internet to facilitate（促进） friendships，since they blog and use networking sites as a way of dealing with their illness．It can foster a sense of social connection for those who frequently feel isolated，which is important to psychological well-being．"
In wider society，the ways in which friendships are formed are changing，with people recognizing that they can develop deep and meaningful connections with others that they've never met，and may never meet．About one in 10people has either met their best friends online，or believes they can make lifelong friends on the Web．
The findings highlight how social introductions are also changing．Only five percent would ask for someone's phone number，while 23percent are now likely to ask for an email address or a full name with the intention of adding the person to their social network．
At the same time，however，a questionnaire completed by 4，427suggests that 20percent of parents believe their children's education is affected by surfing the Net．They think their children are doing poorly at the school due to the amount of time they spend on non-educational websites．
32．The underlined word"it"in Para 1most probably refers toC．
A．people spending too much time surfing the Net
B．people relying on the Internet to connect with friends
C．people having more virtual friends than real ones
D．people making meaningful connections with strangers
33．We can infer from the text thatD．
A．sick people can recover more quickly by surfing the Net
B．students get important information online
C．students who surf the net always perform not so well
D．people tend to trust their virtual friends more than their real ones
34．What percentage of parents believe that the Internet has a bad effect on their children？B
A．About 5percent．
B．About 20percent．
C．About 10percent．
D．About 23percent．
35．In the following paragraph，the author will probably discussA．
A．how much time children spend on the Internet
B．how children learn about the world through the Net
C．how parents feel about their children's studies
D．how children make use of the Internet to study．

6．Picture this：You go to a store to buy food for a party．But when you get to the cash register （收银机） there are no plastic bags for the things you buy．
（36）FThat city has banned （禁止） most plastic shopping bags from stores．
Many cities and towns around the United States may ban plastic bags．They hope that shoppers won't use paper bags either．（37）G
But many people don't want to buy their own cloth bags．They say they wouldn't buy as much if they couldn't get a free bag．Store owners don't want to lose business．（38）D
Stores should be banned from using plastic bags．Here's why：
●All those plastic bags fill up garbage dumps （垃圾站）．（39）A
●People can use cloth bags instead．These bags don't get thrown away until they've been used many times．
Stores should not be banned from using plastic bags．Here's why：
●People might buy less if stores don't offer plastic shopping bags．（40）C
●Some people reuse plastic shopping bags for things like garbage．If they don't get them for free，they'll have to buy some．
●If shoppers forgot a cloth bag，they would have to buy one．That could get expensive．
A．That hurts the environment．
B．There should always be a choice．
C．Some stores might go out of business．
D．So they want to keep offering plastic bags．
E．Many people throw them away when they're done using them．
F．If you live in San Francisco，this situation might not surprise you．
G．Instead，they'd like people to use their own cloth bags when they shop．

13．It is your efforts and good habits ______ the time spent in doing your homework that count if you want to improve your English．（　　）

3．听第6段材料，回答第6、7 题．
6．Where are probable the two speakers now？
A．At the stairs．
B．In an elevator．
C．In a room．
7．What will the woman do？
A．Wait with the man．
B．Tell the man stories．
C．Go outside．

10．听第 6 段材料，回答第 6-8 题．
6．Where did the boy's parents meet for the first time？
A．At a friend's home．
B．At a dance party．
C．At a meeting．
7．What did the boy's father do after their first meeting at the party？
A．He called her every day for two weeks．
B．He came to visit her every day for two weeks．
C．He sent her a bunch of flowers every day for two weeks．
8．Why did the boy's mother's neighbors all came out to see what was happening？
A．Because the boy's parents were quarrelling．
B．Because the boy's parents'wedding was going on outside．
C．Because the boy's father was singing under her window．

7．炎热的天气吸引我们去游泳．（tempt）The hot weather tempted us to go for a swim/into going for a swim．．

8．Whoever guesses what I have in my hand may have it．

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