1、Section A 第三課時第三課時(3a -4c) Unit 13 Were trying to save the earth.人教版 九年級下冊shark n.鯊魚鯊魚fin n.（魚）鰭（魚）鰭cruel adj.殘酷的；殘忍的殘酷的；殘忍的harmfuladj.有害的有害的3a3aRead the passage about sharks and complete the fact sheet below.Where shark fin soup is popularNumber of sharks caught and traded every yearHow much the nu

2、mbers of some kinds of sharks have fallen in the last 20 to 30 yearsTwo environmental groups against “ finning”soalthoughifbutwhen1. 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, _their numbers drop, the o

3、ceans ecosystem will be in danger. whenso3b3bRead the passage again and fill in the blanks with the words in the box.3. Many think that sharks 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

4、health. 5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins. butAlthoughifGrammarFocusWere trying to save the earth.Present progressiveThe river used to be so clean.Used toThe air is badly polluted.Passive voiceNo scientific studies have shown that shark fins are

5、good for health.Present perfectWe should help save the sharks.Modal verbsJoe: _ you ever _ (take) part in an environmental project?Ken: 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 _ (take) part

6、?Havetaken helpconsidered to behadhadhave taken4a4aFill in the blanks with the correct forms of the verbs in brackets. Ken: I _ (think) more than 1000 people _ (come) to help out.Joe: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment.Ken: Yes, we cant afford to _ (

7、wait) any longer to take action!thinkhave cometryingwaitingcanmay / mightcouldhave toshouldmustwould4b4bFill in the blanks 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 exampl

8、e, you _ save electricity by turning off the lights when you leave 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. maymustcancanhave toAnd instead of driving to school or work, you _ ride your bike or walk. If

9、 its far, you _ take the bus. All these small things _ add up and become big things that _ improve the environment. Lets take action now!couldcanmightcanI think that everyone should use public transportation.I disagree. Its difficult for parents with young children to use public transportation4c4cMa

10、ke a list of things that people can do to help the environment and discuss your list with your partner1. Save the Sharks! save作作動詞動詞，意為，意為“救，拯救救，拯救”，后常跟，后常跟介詞介詞from。如：如：He saved the boy from the big fire. 他從大火中救出了那個男孩。他從大火中救出了那個男孩。 The dog saved the girls life. 那只狗救了女孩的命。那只狗救了女孩的命。Language points拓展：

11、拓展：save作作及物動詞及物動詞，意為，意為“儲蓄，貯存；節(jié)省儲蓄，貯存；節(jié)省”。如：如：She saved her strength for the last minutes of the race.她保存體力，準備在比賽的最后幾分鐘沖刺。她保存體力，準備在比賽的最后幾分鐘沖刺。save作作不及物動詞不及物動詞，意為，意為“節(jié)?。淮驽X；貯存物品節(jié)省；存錢；貯存物品”。如：如：Some animals save for the future. 一些動物為未來之需儲存食品。一些動物為未來之需儲存食品。Language points2. When people catch sharks, the

12、y cut off their fins and throw the shark back into the ocean.cut off有以下幾種意思：有以下幾種意思：切斷（水、電）；中斷；關(guān)掉。切斷（水、電）；中斷；關(guān)掉。如：如：Their water supply was cut off 他們的水源被切斷了。他們的水源被切斷了。 切下來；剪下來。切下來；剪下來。如：如：They cut off the heads of their captives 他們把俘虜?shù)念^砍了下來。他們把俘虜?shù)念^砍了下來。 Language points孤立。孤立。如：如：The enemy soldiers we

13、re cut off from their headquarters敵軍同總部的聯(lián)系被切斷，成了孤軍。敵軍同總部的聯(lián)系被切斷，成了孤軍。The flood cut off the villagers from the rest of the world洪水切斷了村民們與外界的聯(lián)系。洪水切斷了村民們與外界的聯(lián)系。 剝奪繼承權(quán)。剝奪繼承權(quán)。 如：如：He has cut his son off without a penny 他取消了兒子的繼承權(quán)，一便士也不給。他取消了兒子的繼承權(quán)，一便士也不給。 Language points【拓展拓展】關(guān)于關(guān)于cut的用法：的用法：cut down 削減；砍倒

14、；殺死；刪節(jié)；勝過削減；砍倒；殺死；刪節(jié)；勝過 cut in 插嘴；超車；插入插嘴；超車；插入 cut into 打斷；侵犯打斷；侵犯 cut out 切斷；刪去；停止；關(guān)掉切斷；刪去；停止；關(guān)掉 cut back 削減；修剪；（美）倒敘削減；修剪；（美）倒敘cut short縮短；打斷；縮減縮短；打斷；縮減 cut from 從從上切下上切下 cut through 刺穿；抄近路走過刺穿；抄近路走過 cut down on 削減，減少削減，減少 cut up 切碎；抨擊切碎；抨擊 cut away 切掉，砍掉切掉，砍掉Language points1.(2014濰坊濰坊) - Are Bet

15、ty and LingLing still living in Beijing? - No, they _ to Qingdao.A. will move B. are movedC. have just moved D. move2. (2014黔西南黔西南) I _ my homework for a long time, I really miss it.A. left B. went away fromC. have left D. have been away fromCD3.(2013福建泉州福建泉州)- If we take a shower instead of bath, more water _. - I agree