七年级英语上册重点单词用法StarterWelcometojuniorhigh1.ready准备好（做某事）的，形容词。（1）be/getreadytodosth.准备做某事。如，I'mreadytoplayfootballwithmyfriends.（2）be/getreadyforsth.为某事准备好；为......做好准备。如，She'sreadyfortheSpringFestival.（3）bereadytodosth.乐意做某事。如，He’sreadytohelpothers.（4）beready准备好了。如，Dinnerisready,Sam.2.join参与，加入（某项活动），动词。如，join后接人或组织。如，DoyouwanttojointheMusicClub?/Iwanttojointhemnow.3.introduce介绍，动词。（1）introducemyself自我介绍。如，Iintroducemyselffirst.（2）introduce...to...把......介绍给......。如，NowIintroduceLucytoyou.4.yourself你自己；你们自己，代词（反身代词）。反身代词构成规律：第一、二人称的反身代词由形容词性物主代词+self（单数）或selves（复数）。如，myself,yourself,ourselves,yourselves。第三人称的反身代词是宾格+self（单数）或selves（复数）。如，himself，herself，itself，themselves。5.enjoy喜欢；享受......的乐趣，动词。enjoysth./enjoydoingsth.喜欢某物或喜欢做某事。如，Sheenjoysreadingbookseverymorning.6.nervous神经紧张的；焦虑不安的，形容词。（1）benervoustodosth.做某事感到紧张。如，She’snervoustospeakinfrontofclass.（2）benervousaboutsth.对......紧张。如，I’mnervousaboutthefootballmatchnextweek.7.hobby业余爱好，嗜好，名词。复数是hobbies。如，What'syourhobby?/Swimmingandrunningarehishobbies.8.need需要，动词。（1）need情态动词，后接动词原形。如，Weneedworkhardeveryday.（2）need实义动词，主语是人+needtodosth.。如，Sheneedstofindamapofthiscity.主语是物+needdoingsth.。如，Theflowersneedwatering.9.decoration装饰物，名词（可数）。如，Whatdoyouthinkofthesedecorations?decorate装饰，动词。（1）decoratewithsth.用......装饰。如，Wedecoratewithsomeflowers.（2）decoratesth.withsth.用......装饰......。如，Theydecoratethetreeswithsomeflowers.Unit1Anewstart1.without缺乏；没有，介词。without后接名词、代词或动名词。如，Hewenttoschoolwithoutbreakfast./Hewenttoschoolwithouthavingbreakfast.2.start开始（做某事），动词。（1）startdoingsth./starttodosth.开始做某事。如，Itstartstorain./Westart1havingclasses.（2）bestarting现在进行时表将来的意思。如，WearestartingtoplaybasketballwithClass1nextweek.3.mistake错误，名词（可数）。makeamistake/makemistakes犯错误。如，It’snotgoodtomakethesamemistake,Amy.4.polite有礼貌的，客气的，形容词。bepolitetosb.对......有礼貌。如，Theboyispolitetotheold.反义词是impolite,不礼貌的，形容词。5.mind头脑；思想，思维，名词（通常作为可数名词）。jumpintoone’smind跳入某人的头脑/思想。如，Somequestionsjumpintomymind./