下面的短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第1～4段每段选择1个最佳标题；(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Cell Phones
1． Believe it or not，cell phones have been around for over a quarter of a century．The first commercial cell phone system was developed by the Japanese in 1979．But cell phones have changeda lot since that time．The early cell phones were big and heavy but they have developed into smalland light palm-sized models．There have been huge developments in their functions，too．We havehad cell forwarding，text messaging，answering services and hands-free use for years，but now thereare countless new facilities，such as instant access 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 on 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，usedfor essential arrangements，social contact and business．They have made it easier to call for help onthe highway．They have made it possible to keep in touch with people"on the move"when peopleare traveling．
3． Cell phones have made communication easier and have reduced the need for family argu ments．We can use cell phones to let our family know we'll be late or if there's a change of plan oran emergency．Cell phones have eased the worries of millions of parents when their teenagers are outlate，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 anumber of new headaches for their owners：it costs a lot to replace stolen phones，something that isbecoming 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 maycause brain tumor(肿瘤)。This may be a time bomb waiting to happen to younger people who havegrown up with cell phones that they simply can't live without．
23．Paragraph 1_________________
24．Paragraph 2_________________
25．Paragraph 3________________
26．Paragraph 4_________________
A．Cell phones and the family
B．Commercial cell phone systems
C．Cell phones in everyday life
D．Cell phones for teenagers
E．History of cell phones
F．Problems with cell phones
27．Nowadays cell phones are equipped with_______________
28．Cell phones are common in our lives and have become________________
29．We can use cell phones to communicate with others when we encounter_________________
30．In spite of many benefits，cell phones have brought for their owners_________________
A．a necessity．
B．an emergency．
C．a number of new headaches．
D．family arguments．
E．big and light palm-sized models．
F.countless new facilities
第4部分：阅读理解(第3l一45题，每题3分，共45分)
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。
第一篇
Arctic Melt
Earth's North and South Poles ale famous for being cold and icy．Last year，however，theamount of ice in the Arctic Ocean feU t0 a record low．
Normally，ice builds in Arctic waters around the North Pole each winter and shrinks during thesummer．But for many years，the amount of ice left by the end of summer has been declining．
Since 1979，each decade has seen an 11．4 percent drop in end of summer ice cover．Between1981 and 2000，ice in the Arctic lost 22 percent of its thickness，becoming 1．13 meters thinner．
Last summer，Arctic sea ice reached its skimpiest levels yet．By the end of summer 2007，theice had shrunk to cover iust 4．2 million square kilometers．That's 38 percent less area than the average cover at that time of year．And it's a very large 23 percent below the previous record low，whichwas set just 2 years ago．This continuing trend has scientists concerned．
There may be several reasons for the ice melt，says Jinlun Zhang，an oceanographer at the University of Washington at Seattle．Unusually strong winds blew through the Arctic last summer．Thewinds pushed much of the ice out of the central Arctic．leaving a large area of thin ice and open water．
Scientists also suspect that fewer clouds cover the Arctic now than in the past．Clearer skies allow more sunlight to reach the ocean．The extra heat warnls both the water and the atmosphere．Inparts of the Arctic Ocean last year，surface temperatures were 3．5℃ warmer than average and 1．5℃warmer than the previous record high．
With both air and water getting warmer，the ice is melting from both above and below．In someDarts 0f the Beaufort Sea，north of Alaska and western Canada，ice that measured 3．3 meters thickat the beginning of the summer measured just 50 centimeters by season's end．
The new measurements suggest that melting is far more severe than scientists have seen by justlooking at ice cover from above，says Donald K．Perovich，a geophysicist at the U．S．Army ColdRegions Research and Engineering Laboratory in Hanover，N．H．
Some scientists fear that the Arctic is stuck in a warming trend from which it may never recover．
31．Which of the following is closest in meaning to the word"build"in the first sentence of the second paragraph?
A．construct
B．extend
C．create
D．expand
32．What is the ice cover in the Arctic by the end of 2007 summer?
A．4．2 million square kilometers
B．11．4 million square kilometers
C．1．13 million square kilometers
D．38 million square kilometers
33．What are the reasons for the ice melting according to the scientists?
A．strong winds and clear skies
B．long summer and short winter
C．open water and thin ice
，2010年全国职称英语理工类（C级）考试真题及答案