【课件】Unit2 Discovering Useful Structures课件 2022-2023学年人教版高中英语必修第二册

1、Unit 2 Wildlife ProtectionDiscovering Useful StructuresLead inThey _ (hunt) illegally for their valuable fur.Much _(do) to protect wildlife, but if we really want to save the planet , we must change our way of life.These large animals _ (kill) illegally for their body parts that are considered valua

2、ble. Billions of trees _ (cut) down every year to make paper for humans.According to A DAY IN THE CLOUDS, Fill in the blanks with the correct forms of the words.are being huntedare being cutare being killedis being doneUnderline and analyse Look at the sentences below. Underline the present continuo

3、us passive voice in the sentences and discuss its function.1am/is/are being doneam/is/are doneam/is/are doingUnderline and analyse 1. African elephants are being hunted.2. What is being done to help them?3. What measures are being taken to help them?Underline the present continuous passive voice in

4、the sentences and discuss its function.1Rewrite the three sentences to active sentences. Hunters are hunting African elephants.What are people doing to help them?What measures are people taking to help them?1. They are being hunted illegally for their valuable fur.2. Much is being done to protect wi

5、ldlife, but if we really want to save the planet , we must change our way of life.3. These large animals are being killed illegally for their body parts that are considered valuable.4. Billions of trees are being cut down every year to make paper for humans.Look at these sentences and underline the

6、present continuous passive voice in the sentences.Underline and analyse ReviewLearn the structures of present continuous passive voice. 肯定句否定句一般疑问句特殊疑问句Try to summarize the structures of present continuous passive voice.Learn the structures of present continuous passive voice. 肯定句be(am/is/are) + bei

7、ng done否定句be(am/is/are) + not + being done一般疑问句be(am/is/are) + 主语+being done特殊疑问句特殊疑问词+be(am/is/are) +主语+ being doneReviewIm (working/being worked) at home today because my office is (painted/being painted).The alarming report is (written/being written). It will be finished soon.What part of the cit

8、y is (attacked/being attacked) now?Right now, the deer are (watched/being watched) over by many volunteers.Who is (hunting/being hunted) in the kangaroos? Where are they (hunted/being hunted)?It is reported that living spaces for wildlife are (reduced/being reduced) due to the cutting of trees.Choos

9、e the suitable verb forms to complete the sentences.2Underline and analyse 表示说话时正在进行的被动动作，句中常用now, at the moment等时间状语。Learn more about the present continuous passive voice. As far as I know, he is now being treated in China.据我所知，他现在正在中国接受治疗。表示现阶段正在进行的被动动作，但说话瞬间未必正在进行。Many experiments are being carri

10、ed out these days.最近许多实验都在进行着。Underline and analyse 表示一种经常性的被动行为，常与always，constantly，frequently等副词连用，往往带有夸奖，羡慕，埋怨，讨厌等感情色彩，I feel very amazed that the glasses of our living room are frequently being broken.我感到非常吃惊的是我们起居室的玻璃杯经常被打破。The little boy has made rapid progress recently and is always being pra

11、ised by the teachers.那个小男孩最近进步很快，总是被他的老师表扬。Underline and analyse Key wordskangaroo kru n. 袋鼠e.g. The kangaroo is a native of Australia. 袋鼠是产于澳大利亚的动物。 deer d(r) n. 鹿e.g. Deer had stripped the tree of its bark. 鹿啃掉了树皮。 net net n. 网；球网； adj. 纯的；最后的；原价的；净重的；e.g. I soon had the fish in a net. 我不一会就网住了那条鱼

12、。Key wordsreduce rdjus vt./vi. 减少；降低； reduce to 减少到 reduce by 减少了 reduce from to 从减少到e.g. These sunglasses are designed to reduce glare. 这些太阳镜是为减少刺眼的强光而设计的。 Costs have been reduced by 20% over the past year.过去一年，各项费用已经减少了20%。The number of employees was reduced from 40 to 25.雇员人数从40人减少到了25人。The skirt

13、 was reduced to 10 in the sale.在大减价期间，这条裙子减价到10英镑。Key wordsdue dju adj. 到期的；预期的；应付的； n. 应付款；应得之物 due to 由于 be due to do sth 预定/计划做某事e.g. Her success was due in part to luck. 她的成功在某种程度上是由于运气好。 The final instalment on the loan is due next week. 贷款的最后一期付款下个星期到期My essays due next Friday我的论文下周五必须交，Key wo

14、rdsneighbourhood nebhd n. 领区；居住区；邻居关系；附近一带in the neighbourhood 在街区e.g. Hes a familiar figure in the neighbourhood. 他在这个地区是大家熟悉的人物。 Themailcarrierinourneighborhoodisafriendof allchildren.我们社区的这个邮递员是所有孩子的朋友。insect nsekt n. 昆虫e.g. The insects wings are almost transparent. 这昆虫的翅膀几乎是透明的。Fill in the blank

15、s3Liu Tao would like to express his concern over the wetland in his hometown. Help him finish the passage with the present continuous passive voice of the verbs in brackets.think about:wildlifehabitatenvironment pollution.Fill in the blanksIn the wetland of my hometown, there are many different kind

16、s of animals, including wild birds, fish, snakes, insects and so on. When I was in primary school, I often went there with my friends to watch the birds and study them. That was an interesting place for all of us. But things have begun to change in recent years. Small birds _ (catch) with nets. Wild

17、 ducks _ (sell) at food market. Fish and snakes _ (kill) for food in restaurants. And even worse, the wetland _ (destroy). Some parts _ (cover) with new houses. You can see rubbish everywhere. The wetland _ (pollute) seriously every day. I am very worried about it. What can we do?are being caughtare

18、 being soldare being killedis being destroyedare being coveredis being pollutedDiscuss with your partner, and give some suggestions for Liu Tao.1. What problems does Liu Tao worry about? Food markets affect animals livingRubbish pollutionToo many constructionsDiscussionDiscuss with your partner, and

19、 give some suggestions for Liu Tao.2. What can we do? Contact with the government.Establish a volunteer group.Advocate the meaning of protecting wetland.Encourage more people to join in.For improving awareness of environmental protectionMake people know more about wetland.Discussion4In groups, discuss the questions below. Prepare to give a presentation of