1、Unit 4Exploring plantsUsing languageWordsrot nectar bat evolve attach moth waspbeetletypicalvt.&vi.腐烂腐烂;腐败腐败 n.花蜜花蜜;甘露甘露n.蝙蝠蝙蝠vt.&vi.发展发展;进展进展;进化进化vt.缚上缚上;寄上寄上n.蛾蛾n.黄蜂黄蜂n.甲虫甲虫adj.典型的典型的;有代表性的有代表性的petal tube delicatefragrant daisyodourodourlessdullmustyfruity n.花瓣花瓣n.管管;管子管子adj.精巧的精巧的;脆弱的脆弱的adj.芬芳的芬芳
2、的;香的香的n.雏菊雏菊n.气味气味;香气香气;臭味臭味adj.没有气味的没有气味的;无臭的无臭的adj.不鲜明的不鲜明的;阴暗的阴暗的adj.发的发的;有霉味的有霉味的adj.果味的果味的;有葡萄味的有葡萄味的Expressionsattach to give out帖上帖上;附上附上发出发出(气味气味,热等热等);分发分发1.How would you describe each plant?What do you think is unusual about each plant?2.One of the pictures shows pitcher plants and another
3、 shows“living stones”.Which picture shows which plant?The name of the plant in the other picture is Rafflesia.In groups,look carefully at the photos of the plants and answer the questions.living stoneRafflesiapitcher plantsNow listen to Mark,Gordon and Andrea telling their class about these plants.W
4、hich student talks about which plant?Plant ABCStudents nameName of the plantMarkPitcher plantLiving stones or LithopsGordonRafflesia arnoldiiAndrea3 Listen again and complete the table with the correct information.You might need to listen several times.MarkGordon AndreaName of the plantReason for it
5、s namepitcherplantliving stonesRafflesiaarnoldiiIts shaped like a pitcher.They look like stones.MarkGordonAndreaIts smellIts shapeIts sizelike a pitcherroundedlike rottingmeatone meter widesmallround with large thick petalsMarkGordonAndreaHow it gets its foodWhere it livesfrom insects that fall into
6、 the pitcherfrom thesoilHot dryplaces inSouth Africa,NamibiaFrom AnotherplantJungles in parts of IndonesiaMarkGordonAndreaWhat its leaves are likeHow common it isHow it is pollinatedshape likepitcherround like stonesdoesnt have leavesit is becoming rareInsects that eat dead animalsBeeHumming-birdsBu
7、tterflies moth Answer the questions.1.What is the advantage for animals of visiting flowers?2.Why do some plants need animals?Animals get food called nectar from the flowers.Some plants need animals to pollinate them.An animal pollinates a flower by collecting pollen from a flower and passing it ont
8、o another flower.3.How does an animal pollinate a flower?4.What features of a flower are important in attracting animal pollinators?The features of a flower that are important in attracting animal pollinators are its colour,shape,sizeand smell.5.What is nectar?6.What kinds of animals are most flower
9、s pollinated by?Nectar is a sweet liquid produced byflowers and collected by bees.Most flowers are pollinated by bees,moths and butterflies.True or false1.Bees follow coloured lines to the nectar inside the flower.2.Flowers that are white or pale can be seen by night pollinators.3.Butterflies are at
10、tracted to sweet-smelling flowers.TTF4.Bats pollinate flowers at night.5.Flower colour is not important to hummingbirds.6.All pollinators need to land on the flower if they are to find the nectar.TFFFind other nouns in the chart that mean the seam as“smell”.List adjectives from the chart that are us
11、ed to describe different kinds of smells.Nouns that mean“smell”:_ _.Adjectives that describe smells:_.odour,perfumedelicate,fragrant,odourless,strong,sweet,musty,fruityABIn groups,look at the pictures and decide what kind of pollinators these plants might have.Give your reasons for your answers.CDEF
12、GH1.attach v.1)装上装上,贴上贴上,系上系上(+to)Hell attach the label to your luggage.他会把标签系在你的行李上。他会把标签系在你的行李上。2)使依附使依附;使附属使附属(+to)This hospital is attached to the medical college nearby.这个医院附属附近的那所医学院。这个医院附属附近的那所医学院。3)(与与oneself连用连用)使参加使参加;使附着使附着(+to)He attached himself to the expedition.他参加了那个探险队。他参加了那个探险队。4)把
13、把归于归于(+to)How can you attach the blame for this accident to the taxi-driver?你怎么能把这次事故的责任归于出租车你怎么能把这次事故的责任归于出租车司机呢司机呢?5)指派指派(+to)The new employee was attached to thesales department.新来的雇员被派在销售部工作。新来的雇员被派在销售部工作。6)归属归属(+to)The blame for this accident attaches to the man who drove under the influence.这起
14、事故的责任应由酒后开车的那个这起事故的责任应由酒后开车的那个人承担。人承担。7)伴随伴随(+to)Those are advantages that attach to the profession.那些都是从事该职业的种种有利条件。那些都是从事该职业的种种有利条件。2.passed/hand on/down 传递传递 Please pass on the ball to Mike.We should pass the good traditions down from generation to generation.The stories of Chang E have been hand
15、ed down.3.typically adv.代表性地代表性地,作为特色地作为特色地;特有地特有地typical adj.典型的典型的,象征性的象征性的 grasp typical cases 抓典型抓典型 I dont like typically American hospitality.Typically,she had forgotten her keys again.Hamlet is a typical character in Shakespeares plays.be typical of sb.to do sth.Its typical of him to have a s
16、ound sleep when we have English classes.It was typical of her to forget.4.give out 1)vt.发出发出(气味、热等气味、热等);分发分发2)vi.用完用完,用尽用尽;筋疲力尽筋疲力尽 The sun gives out heat.Give the money out to the children.Our food supply at last gave out.His strength gave out.Compare:give away vi.赠送赠送,送出送出,背叛背叛,泄露泄露He wants to gi
17、ve away all his modern possessions and return to nature.他要舍弃一切时髦的东西而归真返璞。他要舍弃一切时髦的东西而归真返璞。He would rather give away a point than claim an advantage.他宁愿送分数他宁愿送分数,也不愿要求利益。也不愿要求利益。He was given away by one of his accomplices.他被他的一个同谋者出卖了。他被他的一个同谋者出卖了。Choose one of your favorite plants and write a short passage.Homework
