Listening task unit4課件

1、人教課標(biāo)版人教課標(biāo)版 高二高二 選修選修 7Unit 4Listening taskBefore you listen, look at the pictures on page 75,76 that Annie shows the students. Answer these questions.1. Photo 1 shows how things would look if you had cataracts (白內(nèi)障白內(nèi)障). How would you describe the effects of having cataracts? Look at the persons eye.

2、 Can you see how big the cataract is?Cataracts make things look blurry/fuzzy/very unclear. The cataract is covering most of the pupil of the eye. 白內(nèi)障是指眼睛內(nèi)透明的晶狀體變混濁，白內(nèi)障是指眼睛內(nèi)透明的晶狀體變混濁，是主要的致盲性眼病之一。白內(nèi)障最多見于是主要的致盲性眼病之一。白內(nèi)障最多見于50歲以上的人群，稱為年齡相關(guān)性白內(nèi)障，即老歲以上的人群，稱為年齡相關(guān)性白內(nèi)障，即老年性白內(nèi)障?；颊邿o伴眼紅眼痛，開始發(fā)生時(shí)年性白內(nèi)障。患者無伴眼紅眼痛，開始發(fā)

3、生時(shí)僅表現(xiàn)為輕度視力減退；隨著病程增長(zhǎng)，混濁僅表現(xiàn)為輕度視力減退；隨著病程增長(zhǎng)，混濁加重，導(dǎo)致視力下降明顯，視物不清甚至視物加重，導(dǎo)致視力下降明顯，視物不清甚至視物不見。此外還有其它類型的白內(nèi)障：出生后即不見。此外還有其它類型的白內(nèi)障：出生后即存在或幼年時(shí)發(fā)生的白內(nèi)障稱為先天性白內(nèi)障；存在或幼年時(shí)發(fā)生的白內(nèi)障稱為先天性白內(nèi)障；眼外傷導(dǎo)致的晶狀體混濁成為外傷性白內(nèi)障；眼外傷導(dǎo)致的晶狀體混濁成為外傷性白內(nèi)障；糖尿病、眼內(nèi)炎癥、出血、內(nèi)眼手術(shù)等可引起糖尿病、眼內(nèi)炎癥、出血、內(nèi)眼手術(shù)等可引起并發(fā)性白內(nèi)障等。并發(fā)性白內(nèi)障等。2. Look at Photos 2, 3 and 5. What are t

4、he different ways the patients eyes are being examined?In Photo 2, the patients eyes are being examined through a microscope in a hospital.In Photo 3, the patients eyes are being examined through a microscope that is attached to Fred Hollowss face. The patient is being examined outside, not in a hos

5、pital.In Photo 5, the patients eyes are being examined by a doctor who is holding up her fingers to see if the patient can see them. The patient is being examined outside, not in a hospital.3. What is the surgeon (外科醫(yī)生外科醫(yī)生), Fred Hollows, wearing on his face in Photo 3? Special glasses (like a micro

6、scope) that allow the patients eyes to be magnified so he can see any problems with the patients eyes.4. What is Fred Hollows (left) doing in Photo 4? What is the man on the right doing? Who are the other people?He is giving the patient an injection. The man on the right is explaining what Fred Holl

7、ows is doing. The other people are Vietnamese doctors who are being trained by Fred Hollows.Listen to the tape for these dates and number them in the order that you hear them. Then listen again and write down what happened on these dates.Order Year Event (s)19851Fred Hollows realized there werent en

8、ough medical resources in developing countries; the operation was very expensive. He became determined to find a way of reducing the cost of treatment.Order Year Event (s)1992199319942He started the Fred Hollows Foundation.He died.Two laboratories for making perspex lenses opened one in Eritrea and

9、one in Nepal.34Order YearEvent (s)2003A doctor trained by the Foundation put in the one millionth Fred Hollows perspex lens.5Then listen to Annie again and answer them.1. How often does someone in the world go blind?2. How many people around the world are blind?3. How many of these are blind because

10、 of cataracts?Every five seconds.Around 45 million people.About half of these (that is, 22.5 million).4. How long does a cataract operation take?5. How long is it before the patient can see again?6. How many surgeons has The Fred Hollows Foundation trained in developing countries?About a day. 20 minutes.Over 750.7. What were Fred Hollowss beliefs?8. What are Annies beliefs?He believed