人教版高中英語必修二《Wildlife Protection》SectionB PPT下載，共27頁。
語言知識講練
高 頻 詞 語
1. reduce vt. 減少
【典例促記】
⊙It is reported that living spaces for wildlife are being reduced due to the cutting of trees. (P18)
據(jù)報道，由于砍伐樹木，野生動物的生存空間正在縮小。
⊙Costs have been reduced by 20% over the past year.
在過去一年里，各項費(fèi)用已經(jīng)減少了20%。
⊙The skirt was reduced to ￡10 in the sale.
在大減價期間，這條裙子減價到10英鎊。
⊙The number of employees was reduced from 40 to 25.
雇員人數(shù)從40人減少到了25人。
2. due adj. 由于；因?yàn)?/p>
【典例促記】
⊙When the car is due for its annual service again, please remind me.
當(dāng)這輛汽車到再次進(jìn)行年度保養(yǎng)時，請?zhí)嵝盐摇?/p>
⊙The boat is due to arrive at 12, so remember to meet me on time.
船預(yù)計在12點(diǎn)到，記著準(zhǔn)時去接我。
⊙Thank you for delivering my goods here. Ten dollars is due to you.
多謝你把貨物送到這兒，我應(yīng)付你10美元。
⊙Because of/Owing to the snow, the pilot had to land the plane at another airport.
由于下雪，飛行員不得不把飛機(jī)降落到另一個機(jī)場。
⊙Thanks to your help, we were successful.
由于你的幫助，我們得以成功。
現(xiàn)在進(jìn)行時的被動語態(tài)的用法
1. 表示此刻正被進(jìn)行的動作，句中常用now, at the moment等時間狀語
【典例呈現(xiàn)】
◎More patients are being examined by the doctor now.
更多的病人現(xiàn)在正在接受醫(yī)生的檢查。
◎Several new lines are being built now and will be completed in the near future.
幾條新路線正在修建，最近就要完成了。
2. 表示現(xiàn)階段正被進(jìn)行的動作，但此動作在此時此刻不一定正在發(fā)生
【典例呈現(xiàn)】
◎Many interesting experiments are being carried out these days.
這些天許多有趣的實(shí)驗(yàn)正在被進(jìn)行。(說話時并不一定正在進(jìn)行)
◎Our children are being educated to be green in everything they do.
我們的孩子所受的教育是凡事都要注重環(huán)保。
3. 表示一種經(jīng)常性的被動行為，常和always, constantly, frequently等表示頻率的副詞連用，這種用法常常帶有說話者的贊揚(yáng)或厭惡的感情色彩
【典例呈現(xiàn)】
◎I wonder why the window of our classroom is frequently being broken.
我想知道為什么我們教室的窗戶經(jīng)常被打破。
◎Players are always being encouraged to talk as if they are fans first.
人們總是鼓勵球員們首先要以自己是個球迷的口吻說話。
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