Unit 6 Developing ideas 知识点（ppt课件）-新外研版（2019）《高中英语》必修第二册.pptx

1、Unit 6Whats really green?(1)Most of us are aware that we must take care of the environment,and the majority of us take steps to save energy and reduce waste and pollution.我们大多数都意识到我们必须爱护环境，且多数人采取措施节约能源，减少浪费及污染。be aware that意识到+句子；be aware of+名词/代词 n.awareness 提高某人的意识_ the majority of people大多数人 mino

2、rity n.少数（人）take steps to do采取措施做raise sbs awareness(3)It takes hundreds of years for plastic to break down,but much less time for paper.塑料分解需要几百年的时间，但纸张分解的时间要短得多。It takes(sb.)some time to do sth 做某事花了某人多长时间break downbreak down 分解，分化eg After many years,rocks break down into dirt.Food is broken down

3、in the stomach.break down还意为：The plan was good,but it broke down,because people were unwilling to cooperate.We are sorry to arrive late,but the car broke down.Your health will break down if you work too hard.The young woman broke down in tears.(计划、谈判等）失败计划、谈判等）失败（机器、车辆等）坏了（机器、车辆等）坏了（身体）垮了（身体）垮了感情失控（

4、痛哭起来）感情失控（痛哭起来）break down:分解；（和谈）失败；(身体)等垮了。其它短语：(火灾，战争)爆发_ 闯入_ 关系破裂_break outbreak intobreak up(4)However,making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water.然而，制造一个纸袋所消耗的能源是制造一个塑料袋的四倍，用水然而，制造一个纸袋所消耗的能源是制造一个塑料袋的四倍，用水量多达制造塑料袋的三倍。这个过程中也会

5、产生更多的温室气体。量多达制造塑料袋的三倍。这个过程中也会产生更多的温室气体。倍数表达：观察下列比较级的用法观察下列比较级的用法1.条河是那条河的两倍长。条河是那条河的两倍长。(用比较级）用比较级）This river is _that one.2.这条街是那条街的四倍长。这条街是那条街的四倍长。(用名词）用名词）This street is_that one.3.亚洲的面积是欧洲的四倍。亚洲的面积是欧洲的四倍。(用原级）用原级）Asia is four times _Europe.twice longer than as large as four times the length of 倍

6、数表达：倍数+as much(不可数名词)/many(可数名词)+as 倍数+比较级+than倍数+the+名词(depth/length/size/amount)+of(6)To make sure your appliance is in fact off,remove the plug from its power supply.要确保您的设备实际上已关闭，拔掉电源插头。removefrom将从移开(7)It seems like common sense:eating local food should be better for the environment,because it

7、does not need to be transported long distances and kept cold during transport.这似乎是常识：吃当地食物应该对环境更好，因为它不需要长途运输，并且这似乎是常识：吃当地食物应该对环境更好，因为它不需要长途运输，并且在运输过程中保持低温。在运输过程中保持低温。common sense 常识；sense其它短语：方向感_ 有意义_ a sense of directionmake sense(8)It is the production of food,not its transport,that uses most of

8、the energy.消耗大部分能源和产生大部分温室气体的是食品生产。消耗大部分能源和产生大部分温室气体的是食品生产。强调句构成：It is(was)+被强调部分+that(强调人可以用who)+句子其它去掉强调结构后，句子依然完整去掉强调结构后，句子依然完整.正是塑料袋带来了白色污染。produce u.n.农产品农产品(不可数名词）不可数名词）eg They provide us with fresh produce every day.produce,product与与productionproduce u.n.农产品农产品product c.n.产品，制品产品，制品production

9、 u.n.生产行为，产量生产行为，产量(9)In some cases,local produce might have used more energy and produced more greenhouse gases than produce grown a long way awayeven taking into account its transport.在某些情况下，即使考虑到农产品的运输，当地农产品比生长在很远的地方在某些情况下，即使考虑到农产品的运输，当地农产品比生长在很远的地方的农产品可能消耗更多的能源，产生更多的温室气体。的农产品可能消耗更多的能源，产生更多的温室气体。

10、takeinto account 考虑到，把考虑在内taking into account 为现在分词的独立主格形式，不受句子主语的限制。类似的结构还有:generally speaking,talking of,speaking of,judging from/by,considering 等(10)It depends on how long you spend in the shower and how large your bath is.depend on=rely on 依靠依靠,依赖依赖,取决于取决于 it(all)depends 看情况定看情况定这取决于你花在淋浴上的时间，以及

11、你的浴缸有多大。这取决于你花在淋浴上的时间，以及你的浴缸有多大。Your grades depend on your attitude to study.This book is worth reading again.熟记下列短语熟记下列短语1.环保的环保的 environmental friendly 2.节约能源节约能源 save energy3.看情况而定看情况而定 It depends.4.照顾照顾 take care of 5.采取措施采取措施 take steps 6.大多数大多数.the majority of.7.把把.误认为误认为.mistake.for.8.分解分解 br

12、eak down 9.对对.有坏处有坏处 be bad for 熟记下列短语10.确保 make sure11.实际上 in fact 12.从.拔掉/移除 remove.from.13.常识 common sense14.在一些情况下 in some cases 15.把.考虑进去 take.into account 16.环保意识 environmental awareness17.做.是值得的 its worth doing 熟记下列短语熟记下列短语1.环保的环保的2.节约能源节约能源3.看情况而定看情况而定4.照顾照顾5.采取措施采取措施 6.大多数大多数.7.把把.误认为误认为.8.

13、分解分解9.对对.有坏处有坏处10.确保确保11.实际上实际上12.从从.拔掉插头拔掉插头13.常识常识14.在一些情况下在一些情况下15.把把.考虑进去考虑进去16.环保意识环保意识17.做做.是值得的是值得的P71Dear Friends，We are writing this letter to call on everyone to take part in the Clear Your campaign.It urges people to save food by not wasting anything on the dinning table.You may not know over 30%of the worlds food is wasted,while many people in poor areas do not have enough to eat.In order to save food,we propose:call on sb.to do.号召某人做某事号召某人做某事urge sb.to do.要求某人做某事要求某人做某事urge that sb.should do.(虚拟语气）虚拟语气）by(not)doing.通过做（不做）通过做（不做）.（方式状语）（方式状语）propose v.倡议，建议倡议，建议