课件19张PPT。Unit 4 Save the trees
(第2课时 Reading 1)Learning aimsGrasp the main idea and structure of the text.Be able to find the right information from the text through skimming and scanning.Appreciate the importance of trees and know how to save them.??????Lead-inWhat day is March 12th?It’s Tree Planting Day(植树节).plant treesWhat can we get from trees?usepencils, chopsticks(筷子), tables, chairs, paper…tea (leaves), coffee beans (咖啡豆)…drinkeatfruit, nuts(坚果)…We can get…Pre-reading??????fruitbranchleafrootA What do you know about…树根树枝???B Before you read1. What do you think the interview is about?
a. The lives of trees.
b. Why trees are important in our daily lives.
2. What can we make from trees? Write down three examples.
____________________
____________________
____________________ paperpencilschairsWhile-reading??????Rebecca wants to know more about trees and how they help us. She is interviewing Dr Jones about trees. Rebecca Dr Jones —— an interview??????harmful adj. 有害的 produce v. 产生 oxygen n. 氧气 major adj. 主要的 fighter n. 斗士Part 1.Fill in blanksWhy are trees major fighters against air pollution?
Because trees can keep the air _____ and _____. They can also ____ in _______ _____ from the air and ________ oxygen. coolcleantakeharmfulgasesproducePart 2.??????方便的油家具True or false1. Trees make our lives more difficult.
2. Trees can provide us with many things, such as paper and pencils.FFill in blanks1. According to Dr Jones, what more do we get from trees?
We get ____, ____, ____, and a lot of the ________ in this room.
2. Most furniture is made of _____.Tfruitoilteafurniturewood
Trees are major fighters against __________. They:
keep the air ____________.
take in ____________ from the air and produce oxygen.
Trees make our lives ______________.
Many of the things (e.g. paper and pencils) in our daily lives _______________.
We also get fruit, oil and tea from trees.
A lot of furniture is _______________.air pollutioncool and cleanharmful gases more convenientcome from treesmade of woodLet’s complete the summary!Part 3.??????Multiple choice1. If all the trees in the world disappear, how will Rebecca feel?
A. unhappy B. surprised C. excited
2. If we don’t want a world without trees, we should stop ____.
A. planting more trees
B. protecting trees
C. cutting down treesimagine v. 想象 cut down 砍伐 millions of 大量的thiswe cut down milions of trees every year.Vocabulary checkproduce againstfurnitureconvenientmajorLet’s retell the interview!Trees in our
daily livesI can’t _______ a world
_____ trees.Trees help us
in many_____.They take in
_______ gases and
_______ oxygen.They keep the air
___ and ____.But we cut down
______ of trees
every year. wayscleancoolharmfulproduceThey’re major
______ against
air pollution.fightersMany things in our ____
lives come from trees.Trees also make
our lives more
________.convenientFor example _____ and ______.paperpencilsdailyWe get a lot more
from trees.We get _____ and ___
from them.fruitoil____ also comes from
the _____ of trees.TealeavesLook around this room.
A lot of the ________ is made of _____.furniturewoodTrees are really
________ in our daily lives.importantimaginewithoutmillionsWe should stop _____this if we don’t want
a world without trees.doingPost-reading??????If there are no trees, there will be many disasters(灾难).Can you imagine a world without trees?sandstorm 沙尘暴mudslide 泥石流If we don’t save the trees, what will happen? If we don’t save the trees,
the air will become _____ and _______.
many animals will ______________.
people will get _____. dirtylose their homessickharmful
plant more trees
in the future.To save the trees, we canWhat can we do to save the trees? write on both
sides of the paper.
(双面写字)? stop using plastic
bags.…1. 听录音、熟读课文,并尝试根据蛛网图复述。 Homework2. 完成自主学习任务清单中的练习。See you !