新概念二43课(共40张PPT).ppt

;Lesson 43 Over the South Pole;;;;;;;First listen and then answer the question.;听录音，然后回答以下问题。 How was the plane able to clear the mountains? ; ; In 1929, three years after his flight over the North Pole, the American explorer, R.E. Byrd, successfully flew over the South Pole for the first time. Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble. At one point, it seemed certain that their plane would crash. ;It could only get over the mountains if it rose to 10,000 feet. Byrd at once ordered his men to throw out two heavy food sacks. The plane was then able to rise and it cleared the mountains by 400 feet. Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight. The aircraft was able to fly over the endless white plains without difficulty. ;Ask and answer:;can;Could;比较can和be?able?to;can/can’t/could/couldn’t I can dance the disco. I can’t perform ballet. I could row a boat one year ago. I couldn’t swim when I was four. fly kites/make model planes/take photos /sing English songs.;Exercise ;2. He ____ play the piano now, but he___ play the piano two years ago. A. could; can B. can; couldn’t C. can; could D. can; can’t 3. I bought a doll for Mary ___ a birthday present. A. as B. at C. to D. with;4. Tim can’t play __ piano, but he can play ___ tennis. A. /; the B. the; / C. /; / D. the; the 5. — Can you skate? —___ , I can. A. Of course B. Sorry C. No D. /;Jane can’t use a computer.;Sum up the language points;重点句型;Can/Could he do? Yes he could./ No, he couldn’t. What can/could he do? He can/could swim. What’s eleven plus seven? It’s eighteen.;美国探险家 R.E. 伯德在飞越北极3年之后，于1929年第一次飞越了南极。虽然开始时伯德和他的助手们拍下了飞机下面连绵群山的大量照片，但他们很快就陷入了困境。在有个