人教版高中英語(yǔ)選修8unit3inventorsandinventionssection2練習(xí)題(參考版)
2024-12-07 08:32本頁(yè)面
【正文】 catcher， “Hello ， will you please do me a favor and have a drink with me in the bar？ ” The man gladly receivedaccepted his invitation． After buying the man several cups of soft drinks， Allen asked， “You arewere fishing there， right？ May I know how muchmany fish you have caught this morning？ ” “You are the number 8 ， ” said the man humoroushumorously． 。 Before lunch Allen happened to see a man fished in a water hole about five metre outside a bar． Allen stopped curiously． All people passing over the man who was fishing regarded him like a foolish man． Therefore， Allen said kindly to fish173。修改：在錯(cuò)的詞下畫(huà)一橫線，并在該詞下面寫(xiě)出修改后的詞。增加：在缺詞處加一個(gè)漏詞符號(hào) (∧) ，并在其下面寫(xiě)出該加的詞。 Ⅵ ．短文改錯(cuò) 閱讀短文，文中共有 10處語(yǔ)言錯(cuò)誤，每句中最多有兩處。 A項(xiàng)緊承上文，提示下文要介紹上文所提出的該想法的原理。 3． D 上文提到緊湊型熒光燈比白熾燈更高效，下文提到緊湊型熒光燈不受歡迎的原因，故選 D項(xiàng) (然而它們不是很受人歡迎 )承上啟下。 答案： 1． F 發(fā)光二極管照亮我們的電視屏、電腦屏、手機(jī)屏等幾乎每一件電子產(chǎn)品，故 F項(xiàng) (它們也照亮我們的家和辦公室 )符合上下文語(yǔ) 境。emitting diodes) are brightening up our televisions， puter screens， cellphones and nearly every electronic product we use today． __1__ Not just that． LEDs produce bright white light， use energy efficiently， last much longer and are environmentally friendly． __2__It is no wonder that the Nobel Committee has awarded the 2021 Physics Prize to three scientists who developed the blue LED— Professors Shuji Nakamura， Isamu Akasaki and Hiroshi Amano． Electric bulbs have e a long way from the first incandescent bulb(白熾燈 ) developed by Thomas Edison in 1879． Then came the CFL bulb(緊湊型熒光燈 )． The mercury molecules(水銀分子 ) inside a CFL tube can be excited by passing electricity， and send light． CFL bulbs are more efficient than the incandescent ones． __3__For one，the bulbs are expensive， and the mercury inside them can be poisonous if the bulbs break． In 1962， Nick Holonyak came up with the idea of the LED． __4__Some special materials (called semiconductors) can be made to emit light when electricity is sent through them． You may know that atoms consist of electrons moving around a nucleus(原子核 )— just as the plas orbit around our Sun． __5__Electrons can also jump between orbits！ A． The science is simple． B． But there is a difference． C． How efficient are LED lights？ D． However， they did not bee very popular． E． They are efficient enough to run on solar power． F． They are lighting up our homes and offices as well． G． But all this would not have been possible without the invention of the blue173。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。根據(jù)最后一段的 The camera can examine holes in your teeth while you brush 可知牙刷具有檢查功能。 9． What can we learn about the future development of the Kolibree？ A． The brush handle will be removed． B． A mobile phone will be built into it． C． It will be used to fill holes in teeth． D． It will b
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