英语必修一Unit4单词讲解

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1、Unit4Earthquakesearthquaken.地震Eg:ItisreportedthatanearthquakebrokeoutlastnightinSoutheastAsia.rightaway立刻；马上同义词：rightnow=straightaway=atonce=innotime=immediately注意：rightnow除表示“立刻，马上”之外，还表示“现在，此刻”，比now的语气强，相当于atthismoment,atpresent，用于进行时。well①n.井Eg:Abookisawellofknowledge.②adj

2、.健康的Eg:Ihopeyouwillgetwellsoon.③adv.熟练地，有效地Eg:Heplaysthepianoverywellforhisage.smellyadj.有臭味的，发臭的Eg:Hissocksaresmelly.拓展：blood─bloodycloud─cloudyrain─rainygreed─greedy词根：smell可用作系动词或实义动词，用作系动词时，意为“闻起来”；用作实义动词时意为“闻”Eg:Youmaysmellthemixtureanditsmellsterrible.blood+-y=bloodyrai

3、n+-y=rainycloud+-y=cloudywind+-y=windysnow+-y=snowygreed+-y=greedydream+-y=dreamytaste+-y=tastyice+-y=icyfat+-y=fattymud+-y=muddyfog+-y=foggysun+-y=sunny流血的多云的下雪的幻想的冷漠的，冰的泥泞的肥胖的下雨的多风的贪婪的美味的阳光灿烂的有雾的burst①v.（使）爆裂；（使）破裂；（使）爆炸Eg:Youaregoingtobursttheballoonifyouarenotcareful.Theb

4、alloonsuddenlyburst.②v.猛冲；突然出现Eg:Heburstintotheroomwithoutknocking.burstinto+n.=burstoutdoingsth.突然……起来eg:burstintolaughter=burstoutlaughingeg:她突然笑起来。Sheburstoutlaughing.Sheburstinto.他突然大哭起来。Heburstoutcrying.Heburstinto.n.突然爆裂，爆发短语：aburstof…一阵…eg:一阵笑声laughtertearsaburstoflaug

5、hter勃然大怒aburstofangerburstintoburstwith闯入充满eventn.（1）[C]（尤指涉及几个人的）事件，大事Eg:Thatwasanimportanthistoricalevent.（2）[C]（体育比赛等的）项目，赛事Eg:TheOlympicGamesareimportanteventsinthesportsworld.4.atanend结束，终结eg:炎热的天气终于结束了。Thehotdaysareatlastatanend.Thehotdayscometoanendatlast.beatanend=com

6、etoanend结束短语：putanendto…=bring…toanend使…结束eg:他们应该结束战争。Theyshouldputanendtothewar.Theyshouldbringthewartoanend.辨析：atanend,intheend,attheendof,bytheendof…………1).atanend:表示“终结，结束”，与be动词连用。eg:战争结束了。Thewarwasatanend.=Thewarcametoanend.2).intheend:表示“最终，终于”，单独使用作状语。eg:最终他们放弃了那项计划。Th

7、eygaveuptheplanintheend.(atlast)3).attheendof:表示“在…的尽头/末尾”eg:今年年底，我父亲要回家。Myfatherwillcomehomeattheendofthisyear.Heisattheendofhispatience.他已经忍耐到极限了。4).bytheendof:到…末为止，常与完成时态连用。bytheendoflast…用于过去完成时bytheendofnext…用于将来完成时eg:到上个月末为止，他在那条船上已经待了两年。Bytheendoflastmonth,hehadbeenon

8、thatshipfortwoyears.到下学期末为止，我将学会3000多个英语单词。Iwillhavelearnedmorethan3