If you are happyIf youre happy and you know it, clap your hands.If youre happy and you know it, clap(拍手拍手) your hands.If youre happy and you know it.Never be afraid to show it.If youre happy and you know it, clap your hands.If youre happy and you know it, stomp(跺脚跺脚) your feet.If youre happy and you know it, stomp your feet.If youre happy and you know it.Never be afraid to show it.If youre happy and you know it, stomp your feet.If youre happy and you know it, wink (眨眼眨眼) your eye.If youre happy and you know it, wink your eye.If youre happy and you know it. Never be afraid to show it.If youre happy and you know it, wink your eye.Lets sing.earthquakeLead-in地震地震medical 医疗的医疗的bottom底部底部broken破碎的破碎的trouble烦恼、困难烦恼、困难warn警告警告first aid急救急救calm镇静的镇静的power电、电力电、电力lift举起，抬起举起，抬起harmful有害的有害的drop使落下使落下Who can remember the most!What can you see in these pictures?1. We were having _ at home when the earthquake happened.2. The room started to _.3. Father shouted to everyone to get under the _.4. We could not get out of the room because the _ would not open.5. My father called for help on his _.6. People came to help us and we left our _.dinnershakekitchen tabledoormobile phoneflatWatch a video about the earthquake and try to understand it. do not use hide under keep leave stay awayWhen there is an earthquake .1. _ from the windows.2. _ a table.3. _ the lift.4. _ the building quickly when the ground stops shaking.6. _ calm.Stay awayHide underDo not useLeave Keep 1. Get / Do not get medical help immediately.2. Ask / Do not ask them where the pain is.3. Lift / Do not lift them because you may drop them.4. Keep / Do not keep them warm. Look at these sentences carefully and find out their structures(结构结构):1.Stay away from the windows.2.Keep calm.3.Do not use the lift.4.Do not lift them because you may drop them.5.Cover him with my coat.These sentences are without subjects(主语主语), we call them imperatives(祈使句祈使句).It is a fine day today. Lets go out for a walk.Lets do sth.Whats more, Just a minute, please!This way, please!Lets take a taxi, shall we?Miss Liao saysCan you rewrite(改写改写) these sentences with must or mustnt? 1.Get medical help immediately.2.Ask them where the pain is.3.Do not lift them because you may drop them.4.Keep them warm.You must get medical help immediately.You must ask them where the pain is.tYou mustnt lift them because you may drop them.You must keep them warm.When the earthquake comes, it is dangerous. You _ keep out, or you will be in trouble must处于困境中处于困境中stairsThese stairs are not safe, you _ use them.mustntThe rocks are falling down. You _ get hit. couldThe river is too deep. You _ swim in it. mustntBetty _ know what to do because she did some medical training. must医疗培训医疗培训So, can you draw a conclusion(得出结论得出结论) about how to use the modal verbs (情态动词），情态动词），such as must, mustnt, can or could? mustIf something you should do, If something you are not allowed(允许允许) to do,mustntSo, We can also use must, can, could for prediction(预测，推测）预测，推测）Enjoy some picturesYou mustnt turn right.You must stop!Enjoy some picturesYou mustnt smoke.You must walk by the right side.Enjoy some picturesThe book must be Tonys, because there is his name on it.This English book must be Li Damings.It cant be Tonys. Enjoy some pictures A ten-year-old girl saved about one hundred tourists in 2004 by warning them that a tsunami, a huge ocean wave, was on its way across the sea. She knew what was happening because she learnt about underwater earthquakes at school only a few weeks earlier, a newspaper reported. I was on the beach and the water started to go funny,” Tilly Smith told the reporter from the newspaper. “There were bubbles and the water went back suddenly. I knew there was going to be a tsunami. I told mum,” she said. Tillys mother and the hotel workers acted quickly. They cleared people from the beach just minutes before a huge wave reached the land. Luckily, no one die. Tillys teacher was very proud of her. “Shes a very clever girl. It is very lucky that our class were learning about this kind of tsunami just two weeks before Christmas,” he told the newspaper.1. Whats the best title for this passage? a) 2004 Asian tsunami. b) A girl saves tourists from tsunami.c) Underwater earthquakes.2. What did Tilly notice?a) Water coming to the beach.b) People watching the water.c) Bubbles in the water.3. What does her teacher think of Tilly?a) Shes lucky. b) She doesnt do silly things. c) Shes a clever student.Trouble is not terrible. If we are united(团结团结) and give our helping hands, we can solve everything easily.How to use the imperative (祈使祈使句句), do sth. or dont do sth.How to use the modal verbs(情态情态动词动词), such as must, mustnt can, could.1.Review the usage of imperative and modal verbs. Try to make some sentences.2.Finish the exercises in Act.4 & Act. 5 on Page 101.