外研版 (2019)选择性必修 第二册Unit 6 Survival课文内容课件ppt

这是一份外研版 (2019)选择性必修 第二册Unit 6 Survival课文内容课件ppt，共22页。PPT课件主要包含了 consume，reaction，monthly，terrify，exposure， dusty， advanced， contain，crucially，to commit 等内容，欢迎下载使用。

本课件主要内容安排
课件内容1. 单元构词扩展词汇2. 单元核心词汇讲解3. 单元专题语法讲解4. 单元重点句型讲解
单元构词扩展词汇
appreciatin
单元重点短语
✭词汇一 cmmit v. 犯(错误或罪行)
◆教材原句 N matter hw many crimes he cmmitted, the plice were pwerless t arrest him. 无论他犯了多少罪，警察都无权逮捕他。◆要点必记cmmit a crime 犯罪; cmmit an errr 犯错误;cmmit a suicide 自杀cmmit neself t sth 受…的约束,专心致志于,献身于cmmit sb/yurself t sth 承诺，保证（做某事、遵从安排等） make a cmmitment t sb 承诺; 允诺承担；保证
1. The cmpany's ___________ (cmmit) t prviding quality at a reasnable price has been vital t its success.2. Mst crimes ______________ (cmmit) by thse yung men wh live with the single parent.3. The President is cmmitted t ___________ (refrm) health care.4. I wuld advise peple t think very carefully abut cmmitting themselves t ____________ (wrk) Sundays. 5. They called n Western natins _____________ (cmmit) mre mney t the prest natins.
are cmmitted
✭词汇二 estimate v. 估计，估算
◆教材原句 Recent studies estimate that between 400 millin and 1 billin birds die frm windw impacts each year in the US alne.最近的研究估计，仅在美国，每年就有4亿到10亿只鸟死于窗户撞击。 ◆要点必记estimate sth at.. 表示“估计…为”estimate that-clause 估计... estimate +n./prn. +t be n. 估计...达/为 is estimated+that-clause 据估计...
跟踪训练
1. The giant ape is estimated __________ (be) almst tw metres high.2. It ____________ (estimate) that ttal investment in the cuntry will cntinue t increase this year.3. ______ a rugh estimate, the army must have cvered 250 miles n the cld day.4. I knw him well enugh t frm ________ estimate f his abilities.5. They say the extra revenue, which they estimate __________ 150 billin dllars, culd be used t help Germany weather the current ecnmic crisis.
is estimated
✭词汇三 restrict v.限制，控制
◆教材原句 Sme envirnmentalists argue that we shuld restrict urban develpment t leave enugh natural habitats fr wild animals. 一些环保主义者认为我们应该限制城市的发展，以便给野生动物留下足够的自然栖息地。◆要点必记restrict neself/sth t sth 把…限制在 restricted t 限于,局限于restrict yur freedm 限制你的自由 ◆考点呈现1. I restrict myself _________ ne cup f cffee a day.2. At present, access t the club _______________ (restrict) t members nly.3. He managed t twist himself rund in the ______________ (restrict) space.
is restricted
✭词汇四 react v. (作出)反应
◆教材原句 Hw d peple and rganizatins react t these crisis? 人们和组织如何应对这些危机？ ◆要点必记 reactin n. 反应react t... 对…作出反应react against sth 反对; 反抗react n/upn sb/sth 表示“对…起作用,有影响
1. Lcal residents have reacted angrily _________ the news.2. Children tend t react ___________ their parents by ging against their wishes.3. I wnder hw he wuld react if I read my newspaper ut lud ________ the train. 4. A spkesman said the changes were nt in ____________ (react) t the cmpany's recent lsses.5. The return t traditinal family values is _______ reactin against the permissiveness(放任) f recent decades
✭词汇五 cnsist v. 由...组成
◆教材原句 It cnsisted f a clsed space in which peple, animals and plants culd live tgether. 它由一个封闭的空间组成，人、动物和植物可以在里面生活在一起。◆要点必记 cnsist f 由……组成，构成cnsist in 在于; 存在于cnsist with 与……并存或一致◆考点呈现1. True educatin des nt cnsist________ simply being taught facts. 2. My diet cnsisted almst exclusively ______ chclate-cvered ckies and glasses f milk. 3. Our deeds must cnsist ________ ur wrds. 4. Hilversum is actually in a hilly area with the sil mstly ______________ (cnsist) f sand.
✭词汇六 expse v. 使暴露（于险境）
◆教材原句 We can infer that the Mn is less expsed t dangerus radiain than Mars. 我们可以推断月球受到的危险辐射比火星少.◆要点必记 expsure n. 暴露； 曝光(受冻)expse neself t sth 让自己暴露在...之下expse sb t sth 使面临，使遭受（危险或不快）be expsed t... 受到（危险或不快）； 被暴露...
1. _____________ (expse) t lead(铅) is knwn t damage the brains f yung children.2. A wise mther never expses her children _________ the slightest pssibility f danger. 3. In the wrst cases, a persn mustn't ____________ (expse) t sunlight and must use prtectin. 4. ________________ (expse) t direct sunlight t much can easily get yu sunburnt. 5. This medicine __________ (expse) t daylight will nt wrk well.
Being expsed
语法：Adverial clause with wh-ever & n matter wh-
一. N matter + 特殊疑问词(what, which, wh, whm, whse, when, where, hw) 引导让步状语从句； 二. 特殊疑问词（what, which, wh, whm, whse, when, where, hw）+ ever既可以引导让步状语从句，又可以引导名词性从句。 三. 易错提示：1. N matter what(或Whatever) +名词+从句，+ 主句； 2. N matter hw (或Hwever)+形容词或副词+从句，+ 主句;3. N matter whether+从句，意为“无论是否”。
跟踪训练
1. N matter ___________ he had been invited r nt, he was there t celebrate yur mum's birthday.2. ___________ great the difficulties are, we must cmplete the task n schedule.3. Accrding t the rule, ___________ f them gains the mst pints wins. 4. N matter _________ bad yur heart has been brken, the wrld desn’t stp fr yur grief. The sun cmes right back up the next day.5. N matter _________ level f expsure f smke yu have, yur lung cells knw it and they are respnding. 6. Exercising makes yu mre awake and ready t handle _________ is ahead f yu fr the day.
单元重点句型1
1. Only then can we lk twards harmniusly sharing ur urban habitats.只有这样，我们才能和谐地共享我们的城市栖息地。 【句型分析】 “nly+ 状语或者状语从句”位于句首时，该单句或者主句的主谓采用部分倒装。注意：nly修饰句子的主语时，该句不倒装。 【句型拓展】1. 否定词+状语位于句首，其后习惯上采用部分倒装；2. nt…until句型，当nt until…位于句首时，其后的主句要用倒装语序； 3. nt nly…but als句型中，nt nly句首引出的分句通常用部分倒装形式。
理解应用
1. Only when he tld me ________ I knw details f his trip. 2. Only with all yur time and energy ________ yu d the present wrk well. 3. Nt nly ________ he a teacher, but he is als a pet. 4. S fast ___________ light travel that we can hardly imagine its speed.5. Nt until he went thrugh real hardship ________ he realize the lve we have fr ur families is imprtant. 6. In n cuntry ther than Britain, it is said, _________ ne experience fur seasns in the curse f a single day.
单元重点句型2
2. I can't agree mre. 我完全同意。 【句型分析】 在比较句型中，“否定词+比较级”即形容词的比较级用在否定结构中，可以表示“最……不过”、“不比……更”的意思，相当于形容词的最高级的含义。【句型拓展】比较级形式表示最高级含有的其它结构：
1. I have never read a ________________(interest) tale than this ne.2. Hw beautifully she sings! I have never heard a __________ (sweet) vice.3. Tim is nt shrter than any ________ student in his class. 4. I decided t g with them, mainly because I had nthing ___________ (gd) t d.5. Sphia has brains. In fact, I dubt whether anyne in the class has a __________ (high) IQ.6. Walking exercise may be bring at times but early n a clear sunny mrning there can be nthing _________(fine) .
mre interesting
单元重点句型3
3. While the Mn can be reached within days, it wuld take mnths t reach Mars, travelling thrugh dangerus slar radiatin. 人们可以在几天内到达月球，但要穿过危险的太阳辐射到达火星则需要数月时间。【句型分析】 while 在此引导让步状语从句，意为“虽然”；主句采用固定句型“It take(s) sb sme time t d sth”意为“做某事需要花费多长时间。”【句型拓展】while的其它用法：1. while 作并列连词，意为“而，却”，表示对比；2. while引导时间状语从句，意为“当...的时候，在...的过程中”