第四册第二单元第二课时语言点BOOK4UnitTwo“Workingtheland”HelpyourselfandGodwillhelpyou自助者天助之Learninggoals:Learnthefollowingnewwordsandphrases:struggle,expand,thanksto,rid…..of,thefirst……todo.Step1.LeadinginAskafewstudentstobrieflyintroduceYuangLongPing.Step2.Readingandthinking1.Indeed,hissunburntfaceandarmsandhisslim,strongbodyarejustlikethoseofmillionsofChinesefarmers,forwhomhehasstruggledforthepastfivedecades.思考：为什么whom前用for?1.Strugglev.n.斗争拼搏，努力eg:1)Theyoungmanhasstruggledwithsicknessforafewmonths.2)In1862,theAmericanslaveswontheirstruggleforfreedom知识归纳：Strugglewithsb与某人搏斗，斗争,与……并肩作战Struggleagainst..为抵抗……而斗争Strugglefor…….为…而斗争;努力争取Struggletodosth努力做某事Struggletoone’sfeet挣扎着站起来即学即练：1)Thetwobrothersstruggledeachothertheirparents’oldhouse.2)Inordertoprotecttheenvironment,weshouldstruggleallkindsofpollution_______________________________________3)Afterafewminutes,theyoungmanstruggledhisfeet,glaringattheenemy4)Theangrymanstruggledcontrolhistemper(脾气))2.DrYuansearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields．袁博士(开始)在不增加土地面积的基础上寻求达到增收的途径。expand，vt．张开，使膨胀；扩张；扩充，扩展，发展业务vi.发展；膨胀expand…into…把……扩展／发展成……expandinto…发展成／扩大成……expandonsth．细说(阐述)……expansionn．扩大，膨胀1)Asweallknow,metalsexpandwhentheyareheated译：________________________________________________2)Youcanexpandyourknowledgebyreadingmorebooks译：________________________________________________3)Whynotyourstoryanovel?为什么不把你的故事扩展成小说呢?4)Hehisnewplan．他阐述了他的新计划。辨析：expand／extend／enlarge／spread(1)expand“扩大；使膨胀”，指范围、体积的扩大。(2)extend“扩充；伸长”，指空间范围等的扩大，长度、宽度的延伸及时问的延长。(3)enlarge指面积、体积和范围的扩大以及能力的增长，不能用来指重量、速度、时间等。(4)spread侧重指向四面八方展开，强调其表面，也指物种、疾病、思想或文化习惯的传播、延伸。5)Waterwhenitfreezes．水结冰时体积变大。6)ThehotweathertoOctober．炎热的天气一直持续到十月份。7)Readingwillyourvocabulary．阅读能扩大你的词汇量。8)Thediseasequicklyaroundthevillage．这种疾病迅速在整个村庄里蔓延。3.Thankstohisresearch,theUNhasmoretoolsinthebattletoridtheworldofhunger知识归纳：thanksto多亏，由于表示“因为，由于”的短语还有：because,asaresult,onaccount,owing,due.①__________________(多亏你