外研版 (2019)选择性必修 第二册Unit 5 A delicate world教学演示ppt课件

这是一份外研版 (2019)选择性必修 第二册Unit 5 A delicate world教学演示ppt课件，共21页。PPT课件主要包含了设计说明，owe ，owe v ，语义网络图，“应偿还”金钱，应该把归功于，应给予，精准释义，词块例句，词汇拓展等内容，欢迎下载使用。
本课件依据新教材和新课标的要求，将中英文中思维差异大、高考出现频率高、词义较多、用法灵活的词汇进行了汇总和精讲。特点创新趣味性导入、追本溯源记单词、多重维度复现单词、遗忘曲线精准练单词、深度学习记忆单词模块每个词的呈现同中有异，包含导入、详情和练习三个主要模块。具体分为情境导入、词根溯源、语义网络图、精准释义、常见搭配、词块例句、高考链接、学后练习等方面
Unit5 高频词汇一览
decrease n.&v.
we [əʊ] v.
“I we t my angel mther”是什么意思？
we的词源义是“t have, wn”，引申为“用拥有的去支付或偿还”。其基本义为“应偿还”。
“应偿还”事情发生的原因
“应偿还”解释或歉意等
vt.欠(债),欠(账、钱、人情等)vt.应给予vt.应该把..归功于
we sb. sth. /we sth. t sb. 欠某人某物 we sth. t sb. /sth. 把某事归功于某人或某事 we it t sb. that/t d...把……归功于某人She still wes her father £3 000.她还欠她父亲3 000英镑。＝ She still wes £3 000 t her father.Hw much d I we yu fr the grceries?买这些杂货我得给你多少钱？Yu we me a favur!你还欠我个人情哪！He wes his success t hard wrk.他的成功是靠勤奋工作。
wing t因为，由于He was ut f wrk wing t a physical injury 他因为受伤而失业了。nt used in the prgressive tenses 不用于进行时) we [əʊ] vt.欠(情);欠(账);欠(债);归功于;归因于;起源于wn [əʊn]v.拥有;有(尤指买来的东西);承认 adj./prn.(用于强调)自己的;本人的;自己做的;为自己的
In additin, the use f xen in ceremnies and the thanks peple we t xen help t develp varius traditinal custms, which becmes an imprtant part f the flk culture f the Chinese natin.(高考 安徽卷 2009 阅读)"Hw much d I we yu?“(高考 北京卷 2008 阅读)
该词在历年高考真题中出现10次
一、完成句子。1. He ________________ (把成功归因于) his hard wrk.他把他的成功归功于他的努力。2. Was it ________ (由于)bad weather that they had t change the schedule f leaving？是因为恶劣的天气他们才不得不改变了离开的日程吗？二、单句改错。1. I we t yu that we have made such a great breakthrugh.
wed his success t
decrease n.&v.
decrease [dɪ'kriːs] v. & n.
高考链接根据汉语，写出单词的正确形式。The number f cities prducing CO beynd the standard has been __________（减少）frm 40 t 9.（2014 全国）
decrease是正式用语
构词：de- (dwn) + crease (t grw) → 向下长 → 减少
vt & vi（使）减少；（使）减小
下降到…… 下降了……The number f new students decreased frm 210 t 160 this year. The price f wheat decreased by 15% last year. There has been a decrease in imprts. There has been a decrease f nearly 6% in the number f visitrs t the museum.
►记忆技巧：de 向下 + creas 增长；产生；做 + e → 负增加 → 减少近义词：decline，reduce， drp反义词：increase
B. Negative self-talk damages self-cnfidence and decreases self-respect.(高考 北京卷 2020 阅读)This switch has decreased 66 (pllute) in the cuntry's majr lakes and reservirs and made drinking water safer fr peple.(高考 全国卷II 2018 语法填空)S even if emissins were t begin decrease tday, we wuld still face the challenge f adapting t climate.(高考 江苏卷 2017 阅读)
该词在历年高考真题中出现21次
在空白处填入1个适当的单词或括号内单词的正确形式。1. The new treatment led t a huge decrease __________ the number f deaths.2. While Spain as a whle is heating up quickly, temperatures near the greenhuses have __________ (decrease).（2017 江苏）3. They decreased the size f the grup __________ 25 __________ 15.