牛津深圳版英语七年级下册Unit 4《Save the trees》（Listening）ppt复习课件 （共21张PPT）

课件21张PPT。ListeningBefore you listenSome facts about trees
Trees are very important for people.
Trees are very useful. ______, we can use trees to
make many things, __________, pencils, paper and
furniture. ______, trees provide people with fruit such
as apples, pears, peaches and bananas. ______, we
use leaves from some trees to make Chinese
medicine. These medicine can help people fight against
disease. ______, trees also help the air cool and clean.
They take in harmful gases from the air and produce
oxygen for us to breathe.
_______, trees are in great danger. We cut down
millions of them every year. We must protect them so
they can keep helping us.Firstfor exampleSecondThirdFinallyHowever上述连接词或短语一般用于句首，后面通常有逗号。这些连接词或短语有助于理清思路，使介绍更有逻辑性。Tips:Listen to a radio program about pine trees and complete the notes below. Write one word or figure in each blank.We can find pine trees in almost every ______ of China.
People grow pine trees in cities because they are always ______ and they make the environment more_________
Pine trees are very _________
—They can grow in difficult environments.
Pine trees have very ______ lives.
—Some of them live more than _______ years.
Pine trees are useful.
—We use them to make _________.
—We use them in _________ medicine to fight against
diseases.partgreenbeautifulstronglong1,000furnitureChineseTapescriptHost: Welcome to The Natural World. People tell us they want to learn more about different kinds of trees, so I’m going to tell you something about pine trees today.
You can find pine trees in almost every part of China. People grow pine trees in cities because they’re always green. They make the environment more beautiful. They are very strong plants. They can grow in difficult environments. They also have long lives. Some of them can live more than a thousand years.
We make use of the pine trees in many ways. First, we use the wood from them to make nice furniture. Second, we use them in Chinese medicine. We use almost every part of them to fight against different diseases. 种树 plant/grow treeshundred/thousand/millon/billion的用法1.前面有具体数字，不加s和of,; 没有具体数字，
s 和of 一起加
2.over/about/more than/ or so 与具体数字连用与疾病作斗争fight with diseases根据句意及所给单词的首字母写出所缺单词，注意
其形式。
1. H7N9 is a bad d______.
2. This dictionary is u______. I like it very much.
3. People like to g______ pine trees because they are strong and they are always green.
4. If you are sick, you can take this m______.
5. Researchers are finding ways to f______
against cancers (癌症).iseasesefulrowedicineight完成下列句子。Exercises1. The?policemen?came?and_____?the?hostage.（人质）
?警察来了，解救了人质?
2. They?said?they?had?an?important?matter?
to __________?with?you.?
?他们说有要事与你相商。
3. Did?you ________ with?others again??
?你又和别人打架了吗？
4. For _______ ,?air?is?invisible.??
比如：空气是看不见的save?discuss?fight?example?根据中文意思完成句子。
1. 这条街的商店超过50间。
There are _____ _____ 50 shops in this street.
2. 植物可以使我们的家园更加美丽。
Plants can _____ our home _____ _____.
3. 科学家利用一种新方法与空气污染作斗争。
Scientists use a new way to _____ _____ air pollution.
4. 我用她的铅笔画了一幅画。
I _____ her pencil _____ _____ a picture.used to drawmore thanmake more beautifulfight againstunit4 Speaking Talk timeRepeat the words after the tape.9Exercise 找出每组划线部分发音与其他三项不同的一项。
( )1. A. plane B. please
C. practice D. plan
( )2. A. ski B. sky C. school D. speed
( )3. A. store B. spend C. stop D. stand
( )4. A. price B. present C. pleasure D. pretty
( )5. A. twice B. quick C. quite D. quietACDBCB. Speak upIn groups, discuss why trees are important.
Trees are good for …
We can make …
We also get …
provide people with … fight against pollutionprotect the environmentTrees are very important.wood to make furniturefruit, oil and teastop sandstormsstop the soil from being washed awaytake in harmful gases from the air produce oxygen for people to breathe Tree are very important. First, they are good for
people’s health because they take in harmful gases
from the air and produce oxygen for people to
breathe. Second, they can protect the environment
by stopping the soil from being washed away and
by stopping sandstorms. Third, trees also provide
people with a lot of things. We use wood to make
furniture. We can also get fruit, oil and tea from
trees. So we must protect trees.1．You?can't?see?him?now;?he_________（have）a?bath.??
2．My?parents__________（grow）older?and?older.??
3．He?usually__________（drink）coffee?but?today
?he ____________ (drink）tea.??
4．The?children___________（have）a?good?time?at?
the?party?very?much?right?now.??
5．A：How _____ you?usually_____(?get?）to?work?????????
B：I?usually?_____（go）?by?bus?,but?tomorrow
?I_________（go）in?Tom's?car.??
6．She_________（like）?to?talk?very?much.?In?fact?
she_________________（always?talk?）.用括号中词的正确形式完成句子。Exercises?is having?are growing?drinks?is drinking?are having?doget?goam goinglikes?is always talkingTree planting DayIt is Tree Planting Day. some people are
working near Rebeccas home. Look at the
pictures below and describe them with the
words in bracketswe use the present continuous tense to describe what is happening in photos or pictures