（2021新教材）牛津译林版必修第三册英语Unit2 Natural disasters 单元复习 ppt课件.pptx

1、What is this unit about? Pupils lives were spared during an earthquake. A 10-year-old girl helped around 100 people escape danger with her knowledge of tsunamis. Mary and her parents were caught in a flood. The volcanic eruption destroyed a city completely. tsunami earthquake cyclone hurricane Typho

2、on tornado wildfire forest fire volcanic eruption flood Natural disasters drought sandstorm dust storm snowstorm blizzard landslide avalanche Cause? Natural activities Human activities The imbalance of nature Global warming Natural disasters Effect? injuries death public health issues and diseases d

3、amage to infrastructure damage to property emotional impact solutions Emergency measures Stable buildings Economic support Reforestation Education Technology 3Ps Prediction Prevention Preparation Animals can predict natural disasters? The initial activities which lead to earthquakes and tsunamis cre

4、ate infra- sounds which arrive faster than the main shock wave. Animals like _, _ and _ can hear them. Thus, they perceive the coming danger. The Earths magnetic field slightly deflects before an earthquake. _ detect this deflection and thus, predict the arriving disaster. _ can foresee the approach

5、ing storm or tornado because they detect changes in atmospheric pressure, wind speeds and temperature. Can animals predict natural disasters? The initial activities which lead to earthquakes and tsunamis create infra- sounds which arrive faster than the main shock wave. Animals like flamingos, eleph

6、ants and rhinoceroses can hear them. Thus, they perceive the coming danger. The Earths magnetic field slightly deflects before an earthquake. Dogs detect this deflection and thus, predict the arriving disaster. Birds can foresee the approaching storm or tornado because they detect changes in atmosph

7、eric pressure, wind speeds and temperature. Can animals predict natural disasters? 1. There were loud c_ of glass breaking and things falling down to the ground, but the students remained still and waited calmly and quietly. 2. She s_ to her students to e_ the classroom in an orderly line covering t

8、heir heads with their hands. 3. After a r_ call confirmed that all were safe and sound, they relaxed, laughing, crying, and hugging each other. 4. Were you afraid of running out of s_? 5. I went to the school computer room to make PPT s_ for my project? crashes signalled exit roll slides 回归课本回归课本 su

9、pplies 6. The water may f_ in. 7. In its little shops, its tiny palaces, its forum, its wine b_, its theatrein the energy and skill of its people, you saw a model of the whole Roman Empire. 8. Trading ships bringing i_ to the city or carrying e_ overseas, along with golden pleasure boats for the ric

10、h, were crowded together in the glassy water of the port. 9. The awful night rolled slowly away, and the d_ greyly broke on THE LAST DAY OF POMPEII! 10. Dogs have been very helpful in r_ efforts on land. flood imports bars exports rescue 回归课本回归课本 dawn 1.crash 2.signal 3.exit 4.roll 5.supply 6.slide

11、重点单词重点单词 7.flood 8.bar 9.import 10.export 11.dawn 12.rescue verb whisper; interrupt; shout; beg; exclaim; joke 1. “Here, Mum! Here!” Reuben exclaimed as he ran to her side. 2. “Time to go.” I whispered to the girl, wishing she could follow me right away. 3. My teammates were all screaming as I dashe

12、d toward the finish line. 4. The house got really noisy at that time, with everybody shouting at the top of his voice. 5. He interrupted the silence with an announcement: The deadline to enter for the Competition is tomorrow. 6.“I havent finished; I need more time,” he begged. “Thats what Michelangelo said.” Mr. Edgar joked. “We can do anything we want to do if we stick to it long enough.”