1、Unit 6 Earth first Leading-inWhile-classAfter-classPart.1 Leading-indevote词性：_动词动词_ 意思：_致力于；奉献给；把致力于；奉献给；把.专用于专用于_devote oneself to=be devoted to献身于，致力于devote ones life/time/energy to 把某人的生命/时间/精力奉献于【单词积累】devoted adj.挚爱的；投入的；忠实的；专用于的be devoted to sb.深爱某人be devoted to (doing) sth.致力于（做）某事devotion n.挚
2、爱；奉献练习：Qian Xuesen devoted himself entirely _ science.to presentation词性：_名词名词_ 意思：_介绍；陈述；赠送物；报告；介绍；陈述；赠送物；报告；美美讲课讲课_make/give a presentation 作陈述the presentation ceremony颁奖仪式【单词积累】present v.提出，陈述；描述，展现；颁发，赠送 adj.目前的，现在的；出席的，到场的n.现在；礼物present sb.with sth.=present sth.to sb.赠予某人 某物be present at the mee
3、ting出席会议at present目前，现在练习：The _ (present) of prizes began after the speeches.presentation supply词性：_动词动词_ 意思：_供应；提供；补充供应；提供；补充_food/water/gas/electricity supply 食物/水/煤气/电供应supply sb./sth. with sth. 为某人/某物提供某物supply sth.to sb./sth.【归纳拓展】provide sb. with sth. provide sth. for sb.offer sb. sth.offer st
4、h. to sb.练习：They will supply us _ technology in support without asking for anything in return.with reduce词性：_动词动词_ 意思：_减少；缩小；使落魄；简化；还原减少；缩小；使落魄；简化；还原_reduceby减少了（by表示减少的幅度）reduceto减少到（to表示减少的结果）reduce sb.to tears/silence 使某人流泪/沉默reduce sth. to ashes/ruins 使某物（尤指建筑物）化为灰烬/夷为废墟be reduced to (doing) sth
5、. 沦落到地步rise/increase to 增加到rise/increase by 增加了练习：She reduced her weight _ 6 kilos. That is to say, she reduced her weight from 68 kilos. _ 62 kilos.by; toPart.2 While-classLook at the sentences from the reading passage and answer the questions.a We see a woman swimming at night in a dark sea.b It m
6、ade people frightened of sharks, .1 In sentence (a), who is swimming at night?2 In sentence (b), who is frightened of sharks?In sentence (a), a woman is swimming at night.In sentence (b), people are frightened of sharks.3 Why does the author choose to use different forms of verbs in the two sentence
7、s? In sentence (a), a woman is swimming. In other words, the woman does the action of swimming. So the author uses -ing. But in sentence (b), people are frightened. As a result. Passive voice is used. So the author uses -ed.More sentences in the interview:At that time, nobody cared if sharks were ki
8、lled, or how many were killed. People just wanted them killed.Benchley saw sharks being killed and this caused a deep change in him.(2)位于使役动词后，如位于使役动词后，如keep, have, get, leave, set, catch等。等。 They use computers to keep the traffic running smoothly.他们使用电脑来保持交通畅通他们使用电脑来保持交通畅通。2过去分词作宾语补足语过去分词作宾语补足语过去分词
9、作宾语补足语说明宾语的性质或状态，宾语与过去分词作宾语补足语说明宾语的性质或状态，宾语与过去分词之间为被动关系。能够接过去分词作宾语补足过去分词之间为被动关系。能够接过去分词作宾语补足语的动词主要有两类：一类是感官动词，另一类是使役语的动词主要有两类：一类是感官动词，另一类是使役动词。在高中阶段学习的过去分词作宾语补足语的情况动词。在高中阶段学习的过去分词作宾语补足语的情况通常有以下几种：通常有以下几种：用于表示某种状态的动词用于表示某种状态的动词keep, leave 等的宾语等的宾语后面。后面。(2)“have/get+宾语宾语+过去分词过去分词”表示表示“使某事使某事被做（让别人做或主语
10、自己做）被做（让别人做或主语自己做）”或或“遭遇某遭遇某种不幸种不幸”(3)在在“make+宾语宾语+过去分词过去分词”结构中过去分结构中过去分词表示结果。词表示结果。(4)常用在感官动词常用在感官动词watch. see, hear, notice, feel, find等的后面作宾语补足语。等的后面作宾语补足语。(5)用在用在want, wish, like, expect, order等表示等表示“希望、愿望、命令希望、愿望、命令”的动词的后面作宾语补的动词的后面作宾语补足语。足语。Attracted / Attracting by mermaids since she was a ch
11、ild, Hannah Fraser created her first tail when she was only nine years old. Now, she is a model and performance artist devoted/devoting to ocean conservation. She can be seen worn/wearing mermaid clothing and dived / diving up to 50 feet underwater to swim with dolphins, sharks and whales. She appea
12、red in The Cove, a documentary aiming at highlighting the cruelty of dolphin hunting. Besides performing and modelling, Hannah travels the world given / giving presentations and talks, getting more people involved/involving in the conservation of ocean life.Rewrite the underlined sentences in the in
13、terview, using the -ing and -ed forms to make it more compact and coherent.Answer key for Exercise 3:Here, you can see dramatic landscapes changing from mountains to grasslands, forests to rivers.In recent years, we have seen large areas of wetland damaged by human activity.This includes keeping the
14、 original environment untouched, water conservation: It is the most cost-effective and environmentally way to reduce our demand for water.LED bulb: It can use less electricity.renewable energy: Solar and wind powered energy.greenhouse effect: There are two common meanings of the term greenhouse effe
15、ct. There is a natural greenhouse effect that keeps that Earths climate warm and habitable. There is also the man-made greenhouse effect, which is the enhancement of Earths natural greenhouse effect by the addition of greenhouse gases from the burning of fossil fuels (mainly petroleum, coal, and nat
16、ural gas).reusable water bottle: It is to save materials of producing bottles.carbon footprint: A carbon footprint is the amount of greenhouse gasesprimarily carbon dioxide-released into the air by a particular human activity. For example, when you drive a car, the engine burns fuel which creates a
17、certain amount of greenhouse gases. When you heat your house with coal or electricity. You also generate greenhouse gases. Even the production of food and goods emits some quantities of greenhouse gases. Together these emissions make up a carbon footprint.Part.3 After-classComplete the brochure with
18、 the expressions in Activity 4.Six things you can do NOW to help stop global warmingReduce waste by choosing reusable products get a (n) 1 _, for example.Try to reduce your _. Walk or ride a bike instead of taking a car.Use 3 _such as solar energy and wind power.The less energy you use, the less car
19、bon dioxide is released. Replacing a regular light bulb with a (n) 4 _ is a great start. 5_is important because clean water is a limited resource. Also, we use a lot of energy to process clean water. Planting trees can help a lot in reducing the 6 _ because trees absorb the carbon dioxide in the air
20、.reusable water bottlecarbon footprint renewable energyLED bulbWater conservationgreenhouse effectA: I will go to school by bike to reduce my carbon footprint.B: I will bring a reusable bag when I go shopping.C: I will choose reusable productsget a reusable water bottle. For example to reduce waste.
21、D:I will walk or ride a bike instead of taking a car to reduce my carbon footprint.E: I will use renewable energy such as solar energy and wind power.F: I will replace a regular light bulb with a LED bulb as a great start.G: I will plant trees every year to help reduce the greenhouse effect.Thank you!
