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  3. 共用题干 Cell PhonesI Believe it or not,cell phones have been around for over a ...

共用题干 Cell PhonesI Believe it or not,cell phones have been around for over a ...

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问题 共用题干
Cell Phones

I Believe it or not,cell phones have been around for over a quarter of a century.The first commercial
cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lot
since that
time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod-
els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging,
answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac-
cess to the Internet and receiving and sending photos.
2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three
people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones
are used in every area of our lives and have become a necessary tool,used for essential arrangements,social
contact and business.They have made it easier to call for help on the highway.They have made it possible to
keep in touch with people"on the move”一when people are traveling.
3 Cell phones have made communication easier and have reduced the need for family arguments.We
can use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen-
cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can now
contact their children at any time.
4 This does not mean that cell phones are all good news.They have brought with them a number of
new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent
occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential health
problem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be
a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can't
live without!
选项 We can use cell phones to communicate with others when we encounter__________.
A:a necessity
B:an emergency
C:a number of new hcadaches
D:family arguments
F:big and light palm-sized models
F:countless new facilities
答案B
解析第一段开篇就说从手机发明到现在已过去了四分之一多个世纪，又对比了手机早期和 近期在功能一上的不同，由此可知是在叙述手机的历史。
第二段讲手机在人们的生活中十分常见，许多人离不开手机，手机用于各个场合，因而 意在说明手机存在于日常生活中。
第三段列举了手机对于家人联系上的作用，有助于减少家庭的误会纠纷，有助于父母 联系孩子，因而讲的是手机同家庭的关系。
最后一段第一句就说明了该段要讲的是手机带来的问题，段中虽举了青少年的例子，但 不局限于描写青少年，因此选F。
根据第一段末尾可知答案。
根据第二段第三行可知答案。
根据第三段第二句可知答案。
根据第四段第二句可知答案。第4部分；阅读理解第一篇 本文主要介绍了北极冰川融化的情况、原因和科学家们的担心。
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