英语人教新课标第14讲Astronomythescienceofthestars教案.doc

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1、2019年高考一轮复习第十四讲Astronomy:thescienceofthestars教材版本全国通用课时说明（建议）3课时知识点核心词汇：harmful;exist;puzzle;pull核心短语：intime;inone’sturn;cheerup复习目标学会灵活使用本单元基础语言知识，重点语法知识复习重点重点句型：makeit+形容词/名词+todosth复习难点主语从句英语人教新课标第14讲Astronomythescienceofthestars教案Ⅰ.单句语法填空1．Readinginbedwilldoharm________youreyes.2．Itisimpos

2、sibleforacocktolay________(egg)．3．Ifsteelisheavierthanwater，whyareshipsable________(float)onthesea?4．Inhisblackandbluesuitandwith________oxygentankfastenedonhisback，Larrydivedfromboatsintothemiddleoftheocean.5．Theclimatehere________(be)quitepleasant，thetemperaturerarely，ifever，reaching30℃insum

3、mer.6．Oursuccessdepends________whethereveryoneworkshard.7．Thedestructionofsuchspeciescouldpreventresearchers________(find)curesforcertaindiseases.8．Itwasdifficultforthehelicopters________(get)closetotheroofofthebuildingbecauseoftheheavysmoke.9．Wehavelaunchedanotherman－madesatellite，________isa

4、nnouncedintoday'snewspaper.10．Nowthattheyhavecomputers，itbecomes________(easy)todealwiththeproblems.【答案】　1.to　2.eggs　3.tofloat　4.an　5.is　6.on7.finding　8.toget　9.which　10.easierⅡ.单句改错1．Ifyouputyourheartintoit,you'llsucceedontime.2．ThisissuchinterestingafilmthatIhaveseenittwice.3．It'snolongeraqu

5、estionnowthatwhethermancanlandonthemoon.4．Whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonifthisproblemcanbesolved.5．Generalspeaking,heisasmartboyexcepthiscarelessness.6．Theriverissopollutedthateverydaywecanseealotofthingsbeingfloatingonthewater.【答案】　1.on→in　2.such→so　3.去掉

6、whether　4.if→whether　5.General→Generally　6.去掉being二、温故知新夯实基础考纲单词精讲1、harmfuladj.有害的教材原句Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.(P26)很多科学家相信，由于地球上长期有水存在，使地球得以把有害气体和酸性物质溶解在海洋里。归纳拓展(1)beharmfulto对……有害(2)harmn．&vt.伤

7、害；损害Doharmtosb./dosb.harm对某人有害Thereisnoharmindoingsth.做某事没有害处(3)harmlessadj.无害的harmlessnessn．无害语境助记①Thedroughtwasharmfultothecrops.这场干旱对农作物有危害。②Fruitjuicecandoharmtochildren'steeth.果汁可能会损害儿童的牙齿。③Theymaynotbeabletohelpbutthere'snoharmina