20.Wireless technology is relatively young.The first generation has been around only since the early 1980s,when analog voice transmission (傳送,播送) networks were introduced.The second generation took over in the mid-'90s with the coming of digital wireless voice and data networks,giving us the capabilities that brought about the cell phone revolution we know today.Yet,as remarkable as the technology is,there's still plenty of room for improvement in the roaming capabilities and sound quality of cellular transmission.
Enter the so-called third generation---or 3G---which generally refers to networks capable of connecting to the Internet at speeds of 40times the rate of today's cell phones.This level of service promises Internet connections fast enough to download streaming audio and video files,swap digital photos,and hold teleconferences.It also uses the existing spectrum space more efficiently and increases the speeds with which basic data can be transmitted over wireless devices.
The truth is,most business data doesn't need the full-motion video provided by 3G.Generally,the goal is to transmit text data to employees who are attempting to keep in touch with the office while travelling or working from home."It's simply untrue that current networks aren't good enough to adequately support the needs of your business,"says Erik Lassila,a managing director with Clearstone Venture Partners,a VC firm in Menlo Park,California."Businesses should focus their technology investments in the area of wireless data transmission,"not streaming video capabilities.
Before giving in to the hype (吹噓宣傳,夸大其詞) that surrounds 3G,focus on mobile applications that can help your company gain customer loyalty.Assess how important it is for your business to access accurate inventory data,sales objectives and product details from anywhere via Web-connected cell phones and very small personal computers.Look only at those wireless systems that can enhance your company's business processes and show immediate payback.
It's true that mobile computing will help employees work smarter and more efficiently.But companies must be cautious in how they roll out wireless services and take the time to factor in the ROI before chasing the next big technology.

62.According to the passage,we are currently using the wireless technology ofB.
A.the first generation
B.the second generation
C.the third generation
D.the fourth generation
63.Most business data are in the form ofA.
A.text
B.video
C.a(chǎn)udio
D.photo
64.People wrongly believe thatC.
A.we can never catch up with the development of wireless technology
B.most of the advanced wireless technologies are useless
C.current wireless technology cannot satisfy the needs of business
D.using wireless technology to conduct business is a waste of time
65.The author's main purpose is toC.
A.introduce the newest wireless technology
B.a(chǎn)dvise against businesses using new technology
C.show that current wireless technology is enough for business
D.explain how wireless technology can help business.

分析 本文主要講述了在現(xiàn)代社會(huì),商業(yè)已經(jīng)越來越依賴網(wǎng)絡(luò),并且網(wǎng)絡(luò)的發(fā)展非常迅速,完全能夠滿足商業(yè)的發(fā)展.

解答 62.B 細(xì)節(jié)題.根據(jù)文章內(nèi)容,The second generation took over in the mid-'90s with the coming of digital wireless voice and data networks,giving us the capabilities that brought about the cell phone revolution we know today.第二代無線科技在二十世紀(jì)90年代中期伴隨著無線聲音和數(shù)據(jù)網(wǎng)絡(luò)的產(chǎn)生而產(chǎn)生,給了我們創(chuàng)造手機(jī)革命的能力.結(jié)合選項(xiàng),可推斷我們現(xiàn)在正處在無線科技第二代時(shí)期,故選B
63.A細(xì)節(jié)題.根據(jù)文章內(nèi)容,The truth is,most business data doesn't need the full-motion video provided by 3G.Generally,the goal is to transmit text data to employees who are attempting to keep in touch with the office while travelling or working from home."事實(shí)是,大多數(shù)的商業(yè)數(shù)據(jù)都不需要全動(dòng)態(tài)視頻.總體說來,其目的是將信息數(shù)據(jù)傳輸給員工以讓其能追蹤商品情況.結(jié)合選項(xiàng),故選A
64.C 細(xì)節(jié)題.根據(jù)文章內(nèi)容,."It's simply untrue that current networks aren't good enough to adequately support the needs of your business,"says Erik Lassila由此可知,人們認(rèn)為現(xiàn)在的網(wǎng)絡(luò)不能很好的滿足支持現(xiàn)在商業(yè)的需求,這是不正確的.換言之,這是錯(cuò)誤的,結(jié)合選項(xiàng),故選C
65.C 寫作目的題.根據(jù)文章內(nèi)容,主要講述了在現(xiàn)代社會(huì),商業(yè)已經(jīng)越來越依賴網(wǎng)絡(luò),并且網(wǎng)絡(luò)的發(fā)展非常迅速,完全能夠滿足商業(yè)的發(fā)展.作者的寫作目的就是告訴大家這么一個(gè)事實(shí),結(jié)合選項(xiàng),故選C

點(diǎn)評(píng) 本文是一個(gè)科教類閱讀理解,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對(duì)性的找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測(cè),一定要做到有理有據(jù).

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