三年级语文上册 第三单元期末总复习课件 新人教版 (1009)

1、Unit 13Were trying to save the earth! Section A 3a4c 九年级英语 新目标 人Have you ever seen a shark?What has happened to sharks?The general idea of the article is about . A.water pollutionB.environmental protection groupsC.the sharkRead for the general idea of 3a.CWhere shark fin soup is popularNumber of sha

2、rks caughtand traded every yearHow much the numbers of some kinds of sharks have fallen in the last 20 to 30yearsTwo environmental groups against “finning”southern China70 millionover 90 percent WildAid and the WWFRead the passage about sharks and complete the fact sheet below.Read the passage again

3、 and fill in the blanks with the words in the box.so although if but when1. Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup.2. Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger.3. Many think that s

4、harks are too strong to be endangered, _ they are wrong.4. _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins.whensobutAlthoughif教材解读教材解读1.If their numb

5、ers drop too low,it will bring danger to all ocean life. if引导的是条件状语从句引导的是条件状语从句,谓语动词使谓语动词使用一般现在时表示将来用一般现在时表示将来,主句使用一主句使用一般将来时。般将来时。If it doesnt rain tomorrow,we will go fishing.如果明天不下雨如果明天不下雨,我们就去钓我们就去钓鱼。鱼。2.So far,no scientific studies have shown that shark fins are good for health,so why eat them?

6、 so far的意思是的意思是“到目前为止到目前为止”,主主句时态使用现在完成时。句时态使用现在完成时。So far,we have learned English for six years.到目前为止到目前为止,我们已经学习英语我们已经学习英语六年了。六年了。句中句中that引导的是宾语从句引导的是宾语从句,作动词作动词shown的宾语。的宾语。be good for的意思是的意思是“对对有好处有好处”。Study shows that doing exercise every day is good for our health.研究研究显示显示,每天锻炼对我们的健康有好处。每天锻炼对我

7、们的健康有好处。Retell the story according to the following mind map.Were trying to save the earth.Present progressiveThe river used to be so clean.used to The air is badly polluted.Passive voiceNo scientific studies have shown that shark fins are good for health.Present perfectWe should help save the shark

8、s.Modal verbsGrammar FocusFill in the blanks with the correct forms of the verbs.Joe: _ you ever _ (take) part in an environmental project ?Eric: Yes, I have. I _ (help) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have).Joe: How many people _ (

9、take) part?Eric: I _ (think) more than 1,000 people _ (come) to help out.Joe: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment.Eric: Yes, we cant afford to _ (wait) any longer to take action!Have takenhelpedconsideredhadhadtookthinkcametryingwaitFill in the blanks

10、 with the appropriate modal verbs from the box.People _ think that big things_ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _ savemay/mightmustcancan would could have to should must may/ mightelectricity by turning off the lights when you le

11、ave a room. You _ also use reusable bags instead of plastic bags. I think its a great idea that you now _ pay for plastic bags in some stores. And instead of driving to school or work, you _ ride your bike or walk. If its far, you _ take the bus. All these small things _ add up and become big things

12、 that _ improve the environment. Lets take action now!couldhave to can/shouldcan/couldcouldwould/cancan would could have to should must may/ might教材解读教材解读1.Yes,we cant afford to wait any longer to take action! afford意为意为“承担得起承担得起(后果后果);买得买得起起”,afford sth.表示表示“承受得起某承受得起某物物”,afford to do sth.表示表示“有能力有

13、能力做做,负担得起负担得起”。I dont have enough money.I cant afford the new house.我没有足够的我没有足够的钱。我买不起新房子。钱。我买不起新房子。2.Its difficult for parents with young children to use public transportation 本句采用了本句采用了It is+adj.+for /of sb.to do sth.结构结构,It作形式主语作形式主语,动词不定动词不定式作句子的真实主语。式作句子的真实主语。【注意注意】当形容词修饰动词不定】当形容词修饰动词不定式的内容时式的内

14、容时,使用介词使用介词for;当形容词修当形容词修饰饰sb.时时,使用介词使用介词of。Its very important for us to study hard.对我们来说努力学习非常重要。对我们来说努力学习非常重要。Its kind of you to help me with my English.你太好了你太好了,帮助我学习英语。帮助我学习英语。1.Dont forget to the lights when leaving the room. 2.Riding a bike our health. 3.We have learned thirteen units . 4.How

15、much did you your dictionary yesterday? 5.Have you ever an environmental project? .用方框中所给词组的适当形式填空用方框中所给词组的适当形式填空turn off,take part in,pay for,so far,be good forturn offis good forso farpay fortaken part in.根据汉语意思完成句子根据汉语意思完成句子1.我能买得起这辆汽车。我能买得起这辆汽车。I can the car. 2.他的哥哥花了他的哥哥花了20美元买了新鞋。美元买了新鞋。His brother 20 dollars his new shoes. 3.如果它们的数量降到太低如果它们的数量降到太低,它将会给全部海洋生命带它将会给全部海洋生命带来危险。来危险。If their numbers too low,it danger to all ocean life. 4.到目前到目前,没有科学研究显示鱼翅对健康有好处没有科学研究显示鱼翅对健康有好处,所以为所以为什么吃它们呢什么吃它们呢? ,no scientific studies t