1、U3 Read and thinkLanguage Points. the bear appeared to have s_ and died.1. starve v. suffer or die because u do not have enough to eat starve to death 饿死饿死be starving (adj) for 缺乏缺乏/急需急需/渴望渴望starved 【语境应用语境应用】1) 那次饥荒那次饥荒 (famine) 中中有许多人饿死了有许多人饿死了。2) 那个可怜的孩子急需关注。那个可怜的孩子急需关注。3) 给给我准备些吃的！我快饿死了！我准备些吃的！我
2、快饿死了！Many people _ _ _because of the famine.The poor kid_ _ _ attention. Please prepare some food for me. I_ _!starved to death;is starving for; am starvingThe heat _(release) back into space at longer wave lengths.2. release v. to let a substance flow out 排放排放；释放；释放 to let news or info be known 发布发
3、布 n. eg The latest news has just been released to the media. is released【语境应用语境应用】1) The prisoner has served his sentence and _ (release) tomorrow. 2) When she was alone, she burst into tears, _ (release) all her emotions.3) 油被排放入大海油被排放入大海 Oil_ _ _the sea.4) 从监狱里放出来后，他感到重生。从监狱里放出来后，他感到重生。 _ _ prison
4、, he felt hopeful. will be released releasingwas released intoReleased from3. Without this process, Earth could not s_ life.3. sustain v. 1)make sth continue to exist 保持保持，维持，维持 2)suffer eg Two of the fire-fighters sustained serious injuries.sustain sustainable adj. 可持续的可持续的 She found it difficult _
5、 (sustain) the childrens interest. The aim of the meeting was to promote_(sustain) development in that area. to sustain; sustainable We as individuals can also reduce our “carbon footprint”(碳足迹碳足迹) by _(restrict) the amount of carbon dioxide our lifestyles produce.4. restrict v. limit or control 限制限
6、制；限定；限定eg In future we will restrict class sizes to 20 students. Im restricting myself to/ to drinking a cup of coffee. Access to the club is restricted to members only.restrictingrestriction n. ca rule or law法规法规 uthe act of limiting sb/sth. 约束约束 In fact, news reports are frequently_(broadcast) abo
7、ut extreme rainstorms and heatwaves causing deaths and economic losses.5. broadcast v. send out radio or television programmes 广播广播; (broadcast) 【点拨点拨】 a live broadcast (n.) broadcast (v.) live现场直播现场直播 It is our responsibility _ (seize)every opportunity to educate everyone about global warming,6. se
8、ize v.1) take hold of sth 抓住抓住 seize a chance / an opportunity 2) take control of a place 夺取夺取to seizeThe soldiers seized the city after a hard fight.meltecologyhabitablethe way plants, animals, and people are related to each other , or the study of thisgood enough for people to live init changes to
9、 a liquid (液体液体).词根词缀：词根词缀： eco- 经济，生态经济，生态 -logy 学说学说ecological adj. 生态的生态的; 生态学的生态学的ecologist n. 生态学家生态学家 ecosystem n. 生态系统生态系统fuelcomprehensiveworldwidetrendincluding all the necessary facts, that need to be dealt with a substance such as coal, gas, or oil a general tendency in the way a situatio
10、n is developingeverywhere in the worldfrequentlypolicyfootprinta way of doing sth that has been officially agreedvery often or many timesa mark made by a foot or shoe1. There is little doubt that Earth is getting warmer and warmer.There is little/no doubt. 几乎几乎没有没有/毫无毫无疑问的是疑问的是There is some doubt ab
11、out sth. 对对值得值得怀疑怀疑that引导同位语从句，解释说明引导同位语从句，解释说明doubt的具体内容的具体内容注意：注意：doubt前有否定意义的词修饰时，其后的同位语从句由前有否定意义的词修饰时，其后的同位语从句由that引导；引导；doubt前有肯定意义的词修饰时，其后的同位语从前有肯定意义的词修饰时，其后的同位语从句由句由whether或或if引导。引导。 I have some doubt whether he will be fit in time for next Sundays match.2. According to the scientists who fou
12、nd its dead body, all that remained of the polar bear was “skin and bones”.who引导的定语从句，修饰先行词引导的定语从句，修饰先行词scientiststhat引导的定语从句，修饰先行词引导的定语从句，修饰先行词all, that不能用不能用which代替代替句意：根据发现北极熊尸体的科学家的说法，这只北极熊句意：根据发现北极熊尸体的科学家的说法，这只北极熊只剩下了只剩下了“皮和骨头皮和骨头”。3. the bear appeared to have starved and died.本句本句中中appear是系动词是
13、系动词，to have starved and died是不定式是不定式作表语。作表语。starve这个动作发生在这个动作发生在appear之前，所以用完成式之前，所以用完成式的形式来表达。的形式来表达。4. Climate scientists often mention a key climate process called the “greenhouse effect”, which has two common meanings: the “natural” greenhouse effect and the “man-made” greenhouse effect.过去分词作后置定
14、语，修饰名词过去分词作后置定语，修饰名词processwhich引导的非限制性定语从句，修饰引导的非限制性定语从句，修饰the “greenhouse effect”句意：句意：气候学家经常提到一个被称为气候学家经常提到一个被称为“温室效应温室效应”的关键气的关键气候过程，它有两个常见的含义：候过程，它有两个常见的含义：“自然自然”温室效应和温室效应和“人为人为”温室效应。温室效应。5. When people produce huge amounts of extra greenhouse gases by burning fossil fuels huge amounts of + 不可数
15、不可数名词名词 大量，许多大量，许多修饰名词作主语时，谓语动词用修饰名词作主语时，谓语动词用复复数数形式形式a huge amount of +不可数不可数名词名词 大量，许多大量，许多修饰名词作主语时，谓语动词用修饰名词作主语时，谓语动词用单数单数形式形式eg A huge amount of money has been spent on this project.eg Huge amounts of damage have been done in a short time.6. There is strong and comprehensive evidence that the ri
16、se in temperature has led to an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also costing human lives.主句主句剩余的部分是剩余的部分是that引导的同位语从句，引导的同位语从句，解释解释evidence的具体内容。的具体内容。not only, but also是两个并列的现在分词短语作结果是两个并列的现在分词短语作结果状语状语7. In fact, news reports are fr
17、equently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses.现在分词短语作后置定语，修饰现在分词短语作后置定语，修饰rainstorms and heatwaves8. Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate.result in: to make something happen 导致导
18、致，造成，造成【拓展拓展】 result from. 由由造成造成; ; 因因而产生而产生 as a result of. 由于由于的的结果结果 as a result 结果结果 (在句中常用作插入语在句中常用作插入语, 相当于一个副词相当于一个副词)9. We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce.省略了省略了that/which的定语从句，修饰先行词的定语从句，修饰先行词carbon dioxide
