人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教案配套ppt课件

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教案配套ppt课件，共21页。PPT课件主要包含了 bleɪm ，dɪfend，sɪˈvɪə等内容，欢迎下载使用。

Vcabulary Learning—assistant
【释义】n. a persn wh helps r supprts sb, usually in their jb 助理【例句】My assistant will nw demnstrate the machine in actin.我的助手将演示机器运转情况。Mary was chsen as an assistant t help Mr. Brwn finish his research.玛丽被选为助手来帮忙布朗先生完成他的研究。He was appinted as an assistant t the president fr energy affairs.他被任为总统能源事务助理。【同根词】assistance n. 帮助，援助【语法填空】Ms. Li is a gd __________，whse ____________ benefits us a lt，and she is ___________ us in making chemical experiments in the lab nw. (assist)
/əˈsɪstənt/
Vcabulary Learning—blame
【释义】v. t think r say that sb./sth. is respnsible fr sth. bad 责怪，指责，把……归咎于【例句】Dn’t blame him. After all, he’s nly a child. 别责怪他，毕竟他还是个孩子。【常用搭配】[blame sb. fr sth.]The ther driver blamed me fr the accident.那个司机指责说事故责任在我。[blame sth. n sb./sth.]Plice are blaming the accident n dangerus driving. 警方把事故原因归咎于危险驾驶。[be t blame]The ht weather is partly t blame fr the water shrtage.炎热的天气是缺水的原因之一。
Vcabulary Learning—cast
【释义】v. t lk, smile, etc. in a particular directin 向……投以（视线、笑容等）t thrw sb./sth. smewhere, especially using frce 投【例句】 She cast a welcming smile in his directin.她向他微笑以示欢迎。The priceless treasures had been cast int the Nile.价值连城的珍宝被扔进了尼罗河。They cast anchr at nightfall.他们傍晚抛锚停泊。【常用搭配】[cast away]The ship was cast away during the strm.这条船在暴风雨中失事。[cast back]She cast her thughts back t earlier times.她回想以往的岁月。
/kɑːst /
Vcabulary Learning—cntradictry
【释义】adj. tw statements, beliefs etc that are cntradictry are different and therefre cannt bth be true r crrect 相互矛盾的；对立的；不一致的【例句】The public is being fed cntradictry messages abut the ecnmy.公众得到的有关经济的信息相互矛盾。The advice I received was ften cntradictry. 我所得到的建议常常是相互矛盾的。【同根词】cntradict v. 相矛盾，相反【常用搭配】[cntradictry t]Freedm and discipline are nt cntradictry t each ther.自由与纪律并不对立。
/ˌkɒntrəˈdɪktəri/
Vcabulary Learning—defend
【释义】vi. & vt. t d smething in rder t prtect smene r smething frm being attacked 保护，保卫【例句】We ught t defend ur cuntry.我们应当保卫我们的国家。 Trps have been sent t defend the brders.已派出部队去守卫边疆。【常用搭配】[+ against sth.]We need t defend against military aggressin. 我们要防御军事侵略。【同根词】defensive adj. 自卫的，防御的defence n. 防御；防卫；答辩；防卫设备
Vcabulary Learning—gifted
【释义】adj. having a lt f natural ability r intelligence 有天赋的；有天才的；天资聪慧的【例句】He was gifted linguistically.他在语言方面有天赋。She was an extremely gifted pet.她是一位极具才华的诗人。Gifted with a superb vice, she became the Opera’s leading spran.她天生一副好嗓子，成了歌剧团的领衔女高音。 【同根词】gift n. 礼物【常用搭配】[be gifted with]He was gifted with a charming smile.他有一副迷人的微笑。
/ˈɡɪftɪd/
Vcabulary Learning—husehld
【释义】n. all the peple wh live tgether in ne huse 一家人 adj. relating t lking after a huse and the peple in it 家庭的，家用的，家务的【例句】A grwing number f husehlds have at least ne cmputer.越来越多的家庭拥有至少一台计算机。Vide phnes wn’t becme a husehld appliance fr a lng time.视频电话在很长一段时间内都不会成为家用电器。【常用搭配】[husehld wrd]The advertisement campaign is designed t make this new prduct a husehld wrd in every Chinese hme. 这次广告宣传的目的就是要使这一新产品在中国家喻户晓。【构词法】uphld v 举起，高举，支持
/ˈhaʊshəʊld/
Vcabulary Learning—infect
【释义】v. t make a disease r an illness spread t a persn, an animal r a plant 使感染；传染 t make sb. share a particular feeling 感染【例句】Peple with the virus may feel perfectly well, but they can still infect thers.带病毒的人可能毫无症状，却仍可能传染他人。A single msquit can infect a large number f peple.一只蚊子就可以感染很多人。She infected the children with her enthusiasm fr music.她对音乐的热爱感染了孩子们。【常用搭配】[be infected with]There is a 60% prbability that the ppulatin will be infected with the disease..民众感染这种疾病的概率为60%。
/ɪnˈfekt/
Vcabulary Learning—initial
【释义】n. happening at the beginning 开始的，最初的【例句】After she’d vercme her initial shyness, she became very friendly.她克服了开始的羞怯之后，变得十分友善。We gt thrugh the initial testing perid.我们通过了最初的考试阶段。【同根词】initially adv. 最初【词语辨析】initial, riginalinitial 开始的，最初的，强调处于事物的起始阶段，也可以指位于开头地方的；riginal 最初的，最早的；原版的，原物的。指按顺序是首位的，在此前不再有更为原始的同类的东西；也指原件的，原物的，非仿造的东西。
/ɪˈnɪʃ(ə)l/
Vcabulary Learning—interventin
【释义】n. the act f becming invlved in an argument, fight, r ther difficult situatin in rder t change what happens 介入；出面；干涉【例句】The tw men wuld have cntinued fighting but fr the interventin f a pliceman.要是没有警察前来干预，两个人会一个劲儿打下去的。He underwent the surgical interventin n bld vessels f his left leg.他左腿的血管动过外科手术。【同根词】intervene v. 介入，干涉【同义词】interference n. 介入，干预invlvement n. 牵连到的事物
/ˌɪntəˈvenʃən/
Vcabulary Learning—leadership
【释义】v. the state r psitin f being a leader 领导；领导地位 the ability t be a leader r the qualities a gd leader shuld have 领导才能【例句】The party thrived under his leadership.这个党派在他的领导下兴旺起来。Strng leadership is needed t captain the team.担任这个队的队长需要强有力的领导才能。What mst peple want t see is determined, decisive actin and firm leadership.大多数人希望看到的是果决的行动和强有力的领导作风。【同根词】leader n. 领袖，向导【构词法】citizen 公民-citizenship 公民权 member 会员-membership 会员资格
/ˈliːdəʃɪp/
Vcabulary Learning—mechanic
【释义】n.  smene wh is skilled at repairing mtr vehicles and machinery 机械师；机械修理工【例句】If yu smell gas fumes r burning, take the car t yur mechanic.如果你闻见汽油冒烟或燃烧的异味，应把车送修。An elevatr mechanic can wrk the machinery directly by turning this lever.电梯修理工可以转动这根杠杆直接操作机器。He was a brn mechanic with a flair fr design.他生来就是个有设计天赋的机械师。【同根词】mechanical adj. 机械方面的；机械制的mechanics n. 机械学【同义词】mechanist 机械师
/mɪˈkænɪk/
Vcabulary Learning—multiple
【释义】adj. many, r invlving many things, peple, events etc 数量多的；多种多样的 n. a quantity that cntains anther quantity an exact number f times 倍数【例句】Baxter was rushed t the hspital with multiple stab wunds.巴克斯特因多处刺伤被紧急送往医院。His new album includes multiple versins f the same sngs.他的新专辑包括同一首歌的多个版本。20 is a multiple f 5.20是5的倍数。【同义词】many adj.许多的 varius adj. 多样的【构词法】multiple adj. 多个的 triple adj. 三个的 multinatinal adj.跨国的 multimedia adj.多媒体的
/ˈmʌltəpəl/
Vcabulary Learning—prf
【释义】n. infrmatin, dcuments, etc. that shw that smething is true证明，证据【例句】There is n prf that the knife belnged t her. 没有证据证明那把刀子是属于她的。Yu will be asked t give prf f yur identity.你将被要求提供你的身份证明。【词语辨析】testimny, evidence, prf, witnesstestimny 指证据、证词，多系法律用语。evidence 普通用词，在法律上指能起证明作用的，如证明、公证书以及所有的实物东西等。在生活中指任何一样可证明某一件事的真实性的东西。prf 指足以直接证明某事为某事实的依据，侧重作为充分证据所导致的结果。witness 指证据或证人，尤指后者，且有亲眼见到之意。
/pru:f/
Vcabulary Learning—severe
【释义】adj. severe prblems, injuries, illnesses etc are very bad r very serius (问题、伤势、疾病等)很严重的；severe weather is very bad and very extreme, and very ht, dry, cld etc (天气等)严峻的，激烈的；smene wh is severe behaves in a way that des nt seem friendly r sympathetic, and is very strict r disapprving 严厉的【例句】His injuries were quite severe.他的伤势很严重。We have nt had such a severe winter fr s lng.我们很久没有过如此寒冷的冬天了。We shuld be severe with urselves.我们应该严于律己。【同义词】serius adj. 严重的；stern adj. 严厉的【同根词】severely adv. 严重地，严厉地
Vcabulary Learning—subscribe
【释义】v. t pay mney, usually nce a year, t have cpies f a newspaper r magazine sent t yu订阅〔报纸或杂志〕【例句】Fr learning English, I have t subscribe t sme magazines. 为了英语学习，我不得不订阅一些杂志。 The user then picks an accunt t subscribe by clicking n it. 然后用户通过单击选择要订阅的帐户。【常用搭配】[ + (t sth.)]I hpe we can subscribe t it in China in the near future. 我希望在不久的将来我们能在中国订阅到它。【记忆】sub 下 + scrib 写 + e → 在单子下面写上名字 → 订阅；认购
Vcabulary Learning—substantial
【释义】adj. large in amunt, value, r imprtance 大量的；价值巨大的；重大的 large and strngly made 牢固的；坚实的【例句】Substantial numbers f peple supprt the refrms.相当多的人支持这些改革措施。They demand that blacks be given a substantial vice in the gvernment.他们要求让黑人在政府中拥有重要的发言权。He made substantial dnatins t charity.他为慈善事业捐了很多钱。The huse is substantial enugh t last a hundred years.这房子很坚固，100年也不会坏。【同根词】substance n. 物质，实质【同义词】cnsiderable adj. 大量的【反义词】insubstantial adj. 不牢固的
/səbˈstænʃəl/
Vcabulary Learning—suspect
【释义】v. t think that smething is prbably true, especially smething bad 怀疑 t think that smething is nt hnest r true 不信任n. smene wh is thught t be guilty f a crime 犯罪嫌疑人【例句】 I suspected that there was smething wrng with the engine.我怀疑发动机出了什么故障。I began t suspect his mtives in inviting me.我开始怀疑他邀请我的动机。Tw suspects were arrested tday in cnnectin with the rbbery.有两名与劫案有关的嫌疑人今天被逮捕。【常用搭配】[suspect sb. f sth.]He was suspected f treasn.他有叛国嫌疑。
/səˈspekt/
Vcabulary Learning—transfrm
【释义】v. t cmpletely change the appearance, frm, r character f smething r smene, especially in a way that imprves it 使改观，使变形，使转化【例句】Increased ppulatin has transfrmed the landscape.人口的增加使景观发生了变化。It was an event that wuld transfrm my life.那是能够彻底改变我一生的一件事。 【常用搭配】[+ sth. int sth.]Water can transfrm a desert int a garden.水能使沙漠变为花园。【同义词】change v. 转变【同根词】transfrmatin n. 转变
/trænsˈfɔːm/