冲刺2021届高考英语语法填空20天集训Day9AWealwaysthinkit’sOKforustoleaveourplantsunattendedduringourvacation,butarecentstudyhasledtoanew___1___(discover).Somescientiststestedtobaccoplantsandtomatoplantsbycuttingofftheirstems(茎)and___2___(stop)wateringthem.Theythenrecordedtheirresponsewithamicrophone___3___(place)tencentimetersaway.Theyfoundthattheplantsbegantoscreamultrasonic(超声波)sounds,whichtheybelievedcouldconveytheirsuffering___4___otherplants.Whenthestemofatomatoplantwascut,thescientistsfoundthat___5___screamed25ultrasonicsoundsofsufferingwithinanhour.Thetobaccoplantthathaditsstemcut___6___(send)out15.Theplantsalsoseemedtorespondtodifferent___7___(stress)withthedifferentintensities(强度)ofsound.Thescientistsobservedthatthetobaccoplantsletout___8___(loud)soundwhentheywerenotwateredthanwhentheyhadtheirstemscutThestudyanswersthequestion___9___plantscanfeelpainornot.Itcanchangethewaythatwethinkabouttheplantkingdom,whichhasbeen___10___(natural)consideredtobealmostsilent.BThisbillboarddesignedbyDaanRoosegaardeandhisstudioinpartnershipwiththeUniversityofMonterrey___1___(be)justoneofthebillboardscurrentlysetupinMonterrey,Mexico.Eachadspacehasbeencoatedwithaspecializedresin(树脂)thatattractsnearbyairpollutantsandtransformsthemintooxygenwhen__2__(expose)todirectsunlight.Sincetheheavily-pollutedMexicancityislocatedinavalleywhere___3___isverylittlespacefortreesorgreenery,thebillboardsareconsidereda___4___(complete)newtoolforurbanhealth.ThisisnotthefirstprojectthatDaanRoosegaarde__5___(launch)overthelastfewyears.Heisalsoresponsible___6____theSmogFreeTower:theworld’s___7___(large)aircleanerwhichhasbeenfixedatvariousinternational___8___(location)soitcanturnurbansmogintodiamonds.The23-foottallmetalstructureiscapableof___9___(produce)30,000cubicmetersofcleanairperhourbyfiltering(过滤)75%ofharmfulPM2.5andPM10particles(粒子)fromthesurroundingair.Plus,thetowerusesverylittleelectricity---aboutasmuchas___10____electrickettle.Theelectricitythatitdoesuse,however,comesfromwindpower.答案A【答案解析】1.discovery2.stopping3.placed4.to5.it6.sent7.stresses8.louder9.whether10.naturally【分析】这是一篇说明文。介绍最近的一项研究新发现：研究人员通过切下烟草和番茄的茎并停止给其浇水，发现植物可以发出超声波把感受到的疼痛发送给其他植物。此外，植物也对不同强度的声音会发出不同的声音。【1题详解】考查名词。句中leadto“引起，导致”，其中to为介词，其后新的发现做to的宾语，所以要用名词。故填discovery。【2题详解】考查动名词。句意：一些科学家通过砍掉烟草植株和西红柿植株的茎并停止给它们浇水来测试它们。句中by之后的内容做方式状语，由and可知，前后结构形式要一致。故填stopping。【3题详解】考查过去分词。with的复合结构为：with+宾语+补语。当补语和宾语的逻辑关系是被动关系时，补语要用过去分词形式。句中microphone和place构成了动宾关系，故填placed。【4题详解】考查介词。句意：他们发现这些植物开始发出超声波的声音，他们相信这些声音可以把它们的痛苦传递给其他植物。句中conveysth.tosb./sth.“把……传递给某人或某物”为固定搭配。故填to。【5题详解】考查代词。句意：当西红柿的茎被切断时，科学家们发现它在一小时内，它发出25声超声波的痛苦声。分析句式得知，在时间状语从句when…中，主语是thestemofatomatoplant，所以后面的宾语从句指的就是atomatoplant会发出超声波。故填it。【6题详解】考查时态。句意；切断烟茎的烟草植株发出了15声（超声波的痛苦声）。本句为复合句，其中thathaditsstemcut为定语从句，其余部分为主句。本次实验是在过去发生，发出声音为主动...