人教版 (2019)必修 第二册Unit 2 Wildlife protection完整版ppt课件

这是一份人教版 (2019)必修 第二册Unit 2 Wildlife protection完整版ppt课件，共37页。PPT课件主要包含了n 鹿，n 袋鼠，vt 减少，n 昆虫，n 网，reduce，to 等内容，欢迎下载使用。

T learn t knw the structure f present cntinuus passive vice.T learn t use present cntinuus passive vice t describe the nging events.T learn t use present cntinuus passive vice t describe the endangered animals’ cnditins and measures taken t help them.
Have yu still remembered the structure f present cntinuus tense?Have yu still remembered the use f present cntinuus tense?
present cntinuus tense
am/is/are ding…
We are ding many things t prtect the animals.
We are seeing the Tibetan antelpes next week.
We are bserving the Tibetan antelpes these days.
smething has nt stpped
smething will d in plan
smething peple d in a perid f time
the use f present cntinuus tense
Translate the fllwing sentences.
1. 我们现在正在办公室开会。
We are having a meeting in the ffice nw.
2. 这些日子我一直在思考这个问题。
I’m thinking f the questin these days.
3. 下周二我的朋友将在机场为我送行。
My friend is seeing me ff next Tuesday.
Learn t knw the structure f present cntinuus passive vice
Underline the present cntinuus passive vice in the sentences and discuss its functin.
African elephants are being hunted.
What is being dne t help them?
What measures are being taken t help them?
am/is/are + being +P.P
Find mre sentences with the same verb frm in this unit.
They are being hunted, illegally, fr their valuable fur.
Much is being dne t prtect wildlife.
the use f present cntinuus passive vice
Present cntinuus passive vice is used in the same cnditins where present cntinuus tense is used. But it express a passive vice.
Peple are hunting Tibetan antelpes, illegally, fr their valuable fur.
The tw sentences are telling the same thing but in tw different ways.
现在进行时的被动语态★现在进行时的被动语态的结构肯定式：am / is / are + being +过去分词否定式：am / is / are + nt + being +过去分词一般疑问式：Am / Is / Are +主语+ being +动词的过去分词★现在进行时的被动语态的用法       现在进行时的被动语态强调主语是动作的承受者，表示说话时正在进行着的被动动作、现阶段正在进行着的被动动作或将要发生的动作。
eg The man is being questined by the plice nw. Measures are being taken t prtect thse endangered animals. Am I being taken fr a ride?
【拓展】 现在进行时的被动语态与always, cnstantly等词连用时，表示经常性的被动动作，此时往往带有赞赏、厌恶等感情色彩。eg Recently my daughter is always being praised by the teachers. T the teacher's anger, the same mistakes are always being made by his students.
Use present cntinuus passive vice in prper frms
Read the backgrund f each sentence carefully t make sure whether it is prper t use present cntinuus tense.Analyze the relatinship between the subject and its verb t decide whether it is prper t use passive vice.
Chse the suitable verb frms t cmplete the sentences.
1. I’m (wrking/being wrked) at hme tday because my ffice is (painted/being painted).
2. The alarming reprt is (written/being written). It will be finished sn.
3. What part f the city is (attacked/being attacked) nw?
4. Right nw, the deer are (watched/being watched) ver by many vlunteers.
5. Wh is (hunting/being hunted) the kangars? Where are they (hunted/being hunted)?
6. It’s reprted that living spaces fr wildlife are (reduced/being reduced) due t the cutting f trees.
1. We are ding many things t prtect the animals.
Many things are being dne t prtect the animals.
Change the sentences int their passive vice.
2. We are seeing the Tibetan antelpes next week.
The Tibetan antelpes are being seen next week.
3. We are bserving the Tibetan antelpes these days.
The Tibetan antelpes are being bserved these days.
Have yu visited a wetland?
What can yu see in the wetland?
Why shuld we set up the wetland?
Liu Ta wuld like t express his cncern ver the wetland in his hmetwn. Help him finish the passage with the present cntinuus passive vice f the verbs in brackets.
In the wetland f my hmetwn, there are many different kinds f animals, including wild birds, fish, snakes, insects and s n. When I was in primary schl, I ften went there with my friends t watch the birds and study them. That was an interesting place fr all f us. But things have begun t change in recent years.
Small birds ______________ (catch) with nets. Wild ducks _____________ (sell) at fd markets. Fish and snakes _____________ (kill) fr fd in restaurants. And even wrse, the wetland _______________ (destry). Sme parts ______________ (cver) with new huses. Yu can see rubbish everywhere. The wetland _____________ (pllute) seriusly every day. I am very wrried abut it. What shuld we d?
are being caught
are being sld
are being killed
is being destryed
are being cvered
is being plluted
Why des Lin Ta use present cntinuus passive vice in the passage?In what cnditins can we use present cntinuus passive vice when we are expressing ur ideas?
It is reprted that living spaces fr wildlife are being reduced due t the cutting f trees.reduce vt. t make smething smaller r less in size, amunt, r price 缩小; 减少; 降低
eg My weight reduces when I stp eating sugar. It reduces the risks f heart disease. The new bridge shuld reduce travelling time (frm 50 minutes) t 15 minutes. Csts n bks have been reduced by 20% ver the past year.
reduce ... (frm ... ) t ... 把……（从……）减少到……
reduce ... t sth. / ding sth.使……陷入某种状况/状态
reduce ... by ... 把……减少了……
reduce sb. t ... 降职
【语境应用】根据提示完成句子。1) The number f the emplyees ______ ______ _______ ______ (被削减了) 40% in the last five mnths.2) The ppulatin here has ______ _______ ______ (减少到) fifty thusand nw. 3) 那个军官被降职成一名士兵。 The fficer was reduced t a sldier.
has been reduced by
been reduced
due adj. expected t happen r arrive at a particular time 预定的; 到期的eg The team are due t fly t Italy next mnth. 该球队预定下个月要飞往意大利。due t: because f 由于；因为eg Many crps were damaged due t the fld. 洪水毁了许多庄稼。
【归纳】 be due t d sth. 预期做某事 be due t sth./sb. 归因于某事/某人; 欠某人…… be due fr sth. 应有某物; 应得到某物 【联想】表示 “由于, 因为”的短语还有: because f, as a result f, thanks t, n accunt f, wing t等。
【语境应用】单句语法填空。1) The pliceman said the accident last night was _____________ driving. 警察说昨晚的事故是由于粗心驾驶造成的。2) His new bk ___________________ next year. 他的新书预计明年出版。
due t careless
is due t be published
Use present cntinuus passive vice t describe wildlife prtectin in yur surrundings
Think abut the wildlife in yur city.Find ut where the wildlife lives in yur city and their living cnditins.Find ut what peple nce did t the wildlife in the past.Find ut what peple are ding t prtect the wildlife.
In grups, discuss the questins belw. Prepare t give a presentatin f yur ideas t the class.
What d yu knw is being dne in yur neighburhd t prtect animals and plants?What suggestins d yu have?
n. 临近的地方；街区
A: What is being dne in ur neighburhd t prtect animals and plants?B: Well, the ld trees in the park are being prtected.A: Oh yes. They are being prtected nt nly because they are the natural habitat fr sngbirds.C: That’s right. Perhaps they culd help prtect the birds by making the rads arund the park free frm cars.D: Yes, that wuld certainly help make the air cleaner fr them…
Write sentences while yu visit a place r take part in an event, then bring yur descriptin t the next class fr thers t guess what yu did r where yu have been.
S1: Bks are being read.S2: Are yu in a library?S1: N. Dgs are being walked.S3: Are yu in a park?S1: Yes.