3．What's more exciting than having a fresh hot pizza delivered to your door  How about having it brought to you by a robot  Thanks to Domino's Robotic Unit or DRU，that just became a reality!On March 8，the three-foot tall robot delivered its first pizza to some lucky residents in Brisbane，Australia．
　The fully autonomous DR U is the result of cooperation between Domino's Pizza Australia and Marathon Robotics．The 450-pound machine that travels at a maximum speed of 12.4 miles an hour can traverse a distance of up to 12 miles and back，before requiring a battery recharge．LIDAR，a laser-based sensor technology similar to the one used in self-driving cars，enables DRU to detect and avoid obstacles，while traditional sensors，much like those used in vacuum robots ensure its path is safe as it heads to its destination．
　The robot can fit up to ten pizzas and even has a separate cold area to accommodate drink orders．To access their food，customers have to enter the unique code provided to them by the company．This not only ensures that they pick up the right pizza，but also prevents the pies from getting stolen．
　Scientists expect additional DRU's to be ready for service in their various Queensland locations within the next six months．But don't expect these super cute robots to replace humans anytime soon．According to Domino's the DRU still needs extensive testing，which the company believes could take up to two years．
　And then there is also the issue of regulations．The public use of autonomous vehicles is still banned in most countries．But Don Meij，the CEO and Managing Director of Domino's Pizza Australia New Zealand Ltd，is not worried．He is"confident that one day DRU will become an integral part of the Domino's family．"

21．What's the function of LIDARB
A．Recharging DRU's battery．
B．Keeping DRU free of obstacles．
C．Helping DRU find its destination．
D．Protecting DRU from bad weather．
22．What does the underlined word"accommodate"in paragraph 3 probably meanA
A．Hold．
B．Sell．
C．Heat．
D．Show．
23．What can we infer about future of DRUD
A．It will replace humans soon．
B．It will be applied worldwide．
C．It may be banned in Australia．
D．It may need some improvements．

分析 本文介紹了一種可以送披薩上門(mén)的機(jī)器人．

解答 21．B．理解推斷題．由第二段LIDAR，a laser-based sensor technology similar to the one used in self-driving cars，enables DRU to detect and avoid obstacles，可知LIDAR技術(shù)類(lèi)似于一個(gè)用于自動(dòng)駕駛汽車(chē)的傳感技術(shù)，確保DRU的檢測(cè)和避免障礙，故選B．
22．A．詞義推斷題．由句意可推知，它不僅送披薩還送飲料，因此冷的地方肯定是用來(lái)儲(chǔ)藏飲料的，故選A．
23．D．理解推斷題．由倒數(shù)第二段According to Domino's the DRU still needs extensive testing，which the company believes could take up to two years，該機(jī)器人仍然需要大量的測(cè)試，公司認(rèn)為可能需要長(zhǎng)達(dá)兩年，可知還有需要改進(jìn)的地方，故選D．

點(diǎn)評(píng) 關(guān)于科教類(lèi)閱讀中的一些專業(yè)詞語(yǔ)或生詞，考生要學(xué)會(huì)略過(guò)某些對(duì)閱讀影響不大的詞．如果必須要弄清它的意思，則可以根據(jù)詞形進(jìn)行判斷，或者從該詞在句子中的功用以及與其他詞語(yǔ)之間的關(guān)系猜測(cè)生詞的意思．也可根據(jù)上下文和其他詞語(yǔ)的按時(shí)猜測(cè)生詞的含義．

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