【课件】Unit+4Discovering+Useful+Structures+课件-人教版（2019）必修第一册.pptx

Unit 4 Natural DisasterNatural DisasterNatural DisasterNatural Disaster Restrictive Relative ClauseDiscovering useful structuresHi,Im Earth boy.Im Earth boyis crazy about magic.Welcome to Disaster Earth!Rrrr.HurricaneIt is a strong wind which/that happens in the Western Atlantic Ocean.FloodIt is a large amount of water which/that overflows into a city.WildfireIt is a huge fire which/that starts by itself in a wild area.VolcanoIt is a mountain whose mouth erupts gas,ash and hot rocks sometimes.TornadoIt is a strong wind which/that moves in a circle.TsunamiIt is a very large wave which/that is often caused by an earthquake under the sea.1.Hi,Im Earth boy who is crazy about magic.2.Hurricane is a strong wind which/that happens in the Western Atlantic Ocean.3.Flood is a large amount of water which/that overflows into a city.4.Wildfire is a fire which/that starts by itself in a wild area.5.Volcano is a mountain whose mouth erupts gas,ash and hot rocks sometimes.6.Tornado is a strong wind which/that moves in a circle.7.Tsunami is a very large wave which/that is often caused by an earthquake under the sea.Restrictive relative clause is used to give information about people or things.Observe the rule A big earthquake shook our neighboring(邻近的邻近的)city!What can we do to help them?1.Come to rescue1.Come to rescueIf we were soldiers,we can dig out If we were soldiers,we can dig out the peoplethe people.The people The people were buriedwere buried.If we were soldiers,we can dig out If we were soldiers,we can dig out the people the people who/that who/that were buried.were buried.What can we do to help them?1.Come to rescue1.Come to rescueIf we were workers,we can build shelters for If we were workers,we can build shelters for the peoplethe people.The people The people were homelesswere homeless.If we were workers,we can build shelters for If we were workers,we can build shelters for the people the people who/that who/that were were homeless.homeless.What can we do to help them?1.Come to rescue1.Come to rescueIf we were doctors,we can take care of If we were doctors,we can take care of the peoplethe people.The people The people were badly injuredwere badly injured.If we were doctors,we can take care of If we were doctors,we can take care of the people the people who/that who/that were badly injured.were badly injured.What can we do to help them?1.Come to rescue1.Come to rescueHe is an eight-year-old boy.He is an eight-year-old boy.The doctor is taking care of The doctor is taking care of himhim.He is an eight-year-old boy He is an eight-year-old boy whom whom the doctor is taking care of.the doctor is taking care of.What can we do to help them?1.Come to rescue1.Come to rescueShe is a high school student.She is a high school student.The soldiers is digging out The soldiers is digging out herher.She is a high school student She is a high school student whomwhom What can we do to help them?1.Come to rescue1.Come to rescueShe is a high school student.She is a high school student.The soldiers is digging The soldiers is digging her her outout.She is a high school student She is a high school student whomwhom the soldiers is digging out.the soldiers is digging out.What can we do to help them?2.Make donations2.Make donationsWe can donate We can donate moneymoney.Money Money can help people rebuilt their home.can help people rebuilt their home.We can donate We can donate moneymoney which/that which/that can help people rebuilt their home.can help people rebuilt their home.What can we do to help them?2.Make donations2.Make donationsWe can donate We can donate clothesclothes.ClothesClothes can protect people from the cold.can protect people from the cold.We can donate We can donate clothes clothes which/that which/that protect people from the cold.protect people from the cold.What can we do to help them?2.Make donations2.Make donationsWe can donate We can donate foodfood.Food Food can fill people with strength.can fill people with strength.We can donate We can donate foodfood which/thatwhich/that can fill people with strength.can fill people with strength.What can we do to help them?3.Comfort the survivors3.Comfort the survivorsWe can comfort We can comfort the childrenthe children.The childrenThe childrens s parents were died in the earthquake.parents were died in the earthquake.We can comfort We can comfort the children the children whosewhose parents were died in the parents were died in the earthquake.earthquake.What can we do to help them?3.Comfort the survivors3.Comfort the survivorsWe can comfort We can comfort the victimsthe victims(受难者受难者).).The victimThe victims s houses were totally destroyed.houses were totally destroyed.We can comfort We can comfort the victims the victims whose whose houses were totally destroyed.houses were totally destroyed.What can we do to help them?3.Comfort the survivors3.Comfort the survivorsWe can comfort We can comfort the manthe man.The manThe mans s head was hurt in the earthquake.head was hurt in the earthquake.We can comfort We can comfort the man the man whosewhose head was hurt in the earthquake.head was hurt in the earthquake.thatthatthatthatwhosewhosewhosewhose指人指物whichwhichwhichwhichwhowhowhowhowhomwhomwhomwhomthatthatthatthatwhosewhosewhosewhosewe can dig out the people we can dig out the people who who were buried.were buried.Flood is a large amount of water Flood is a large amount of water whichwhich overflowoverflows s into a city.into a city.He is an eight-year-old boy He is an eight-year-old boy whom whom the doctor is taking care of.the doctor is taking care of.We can donate food We can donate food thatthat can fill can fill people with strength.people with strength.we can build shelters for the we can build shelters for the people people that that were homeless.were homeless.V Volcano is olcano is a mountain a mountain whosewhose mouthmouth erupts erupts gasgas,ash and hot ash and hot rocks sometimesrocks sometimes.We can comfort the man We can comfort the man whosewhose head was hurt in the earthquake.head was hurt in the earthquake.thatthatthatthatwhichwhichwhichwhichwhowhowhowhothatthatthatthatwhosewhosewhosewhose作定语whomwhomwhomwhomwhichwhichwhichwhich作主语作宾语whowhowhowhowe can dig out the people we can dig out the people who who were buried.were buried.He is an eight-year-old boy He is an eight-year-old boy whom whom the doctor is taking care of.the doctor is taking care of.we can build shelters for the we can build shelters for the people people that that were homeless.were homeless.The Tangshan earthquake was a The Tangshan earthquake was a terrible experience terrible experience which which people people connot forgetconnot forget.Flood is a large amount of water Flood is a large amount of water which which overflowoverflows s into a city.into a city.The girl(The girl(thatthat)we)we rescuedrescued yesterday yesterday waswas Jim Jims s sister.sister.The girl(The girl(who/whomwho/whom)we)we rescuedrescued yesterday yesterday waswas Jim Jims s sister.sister.Workers built shelters for Workers built shelters for survivors survivors whosewhose homes had been homes had been destroyed.destroyed.1.先行词指人时，用关系代词在句中先行词指人时，用关系代词在句中_；关系代词用；关系代词用_。2.先行词是物时，用关系代词先行词是物时，用关系代词_，在从句中作，在从句中作_。3.whose 在从句中作在从句中作_，既可以指人，意为，既可以指人，意为“_”；也；也可以指可以指物，意为物，意为“_”。4.关系代词关系代词that,who,whom,which 在定语从句中作在定语从句中作_时可以省略时可以省略。作主语或宾语作主语或宾语that/who(whom)that/which主语或宾语主语或宾语定语定语某某(些些)人的人的某物的某物的宾语宾语Summarize the rulesSummarize the rules关系关系代词代词指代指代在定语从句中所充当的成分在定语从句中所充当的成分人人(people)物物(things)主语主语(S)宾语宾语(O)定语定语(A)whowhomwhichthatwhoseThe usage of the relative pronouns Workers built shelters for survivors Workers built shelters for survivors whosewhose homes homes had been destroyedhad been destroyedWorkers built shelters for Workers built shelters for survivorssurvivors.TheirTheir homes had been destroyed homes had been destroyed.The girl was Jims sister.We rescued the girl yesterday.The girl(who/whom)we rescued yesterday was Jims sister.Magic of restrictive relative clauseMagic of restrictive relative clause判断关系代词的步骤steps：Step 1：确定先行词表述的是“人”还是“物”Step 2：判断先行词在从句中做什么成分Step 3：选择合适的关系代词6.6.Workers built shelters for survivors whose homes had been destroyed.Workers built shelters for survivors whose homes had been destroyed.1.1.There were deep cracks that appeared in the well wallsThere were deep cracks that appeared in the well walls.2.A doctor with whom James used to work died in the 2016 earthquake in Ecuador.2.A doctor with whom James used to work died in the 2016 earthquake in Ecuador.3.3.Two thirds of the people who Two thirds of the people who l lived there were dead or injured.ived there were dead or injured.4.The supplies which were provided to the disaster area were collected from around the 4.The supplies which were provided to the disaster area were collected from around the country.country.5.The Tangshan earthquake was a terrible experience that my great-grandma cannot forget.5.The Tangshan earthquake was a terrible experience that my great-grandma cannot forget.Find part A and C!Find part A and C!Then determine part B!Then determine part B!The number of people was more than 400,000.People were killed or badly injured in the quake.The number of people who/that were killed or badly injured in the quake was more than 400,000.The injured boy was sent to hospital.His mother was lost in the disaster.The injured boy was sent to hospital whose mother was lost in the disaster.Love is the power.Love gives people hope and gets them out of disasters.Love is the power which/that gives people hope and gets them out of disasters.The city was in ruins.A hurricane hit the city.The city which/that a hurricane hit was in ruins.Complete each sentence with that,which,who,whose,whom or/.1.Here are some of the people _ homes were destroyed by the typhoon.2.The terrible shaking of the building woke up all the people _ were asleep.3.The next day,people put up shelters in the open air using anything _ they could find.whosewhothat;/4.Several days later,most of the buildings _ had been damaged by the hurricane were repaired.5.The injured boy _ mother was lost in the disaster was taken to the hospital.6.The woman wrote a thank-you letter to the soldier by _ she was rescued.7.Is this young boy _ saved several other students trapped under buildings?that/whichwhosewhomwhoChallenge Yourself!Lets use restrictive relative clause to introduce more natural disasters and make your own poster!Some tips:1.introduction(what kind of natural disaster it is?)2.reasons(how is it formed?)3.effects(what damage it will cause?)4.measures(what can we do to protect us?)STARTWhich group will be the lucky dog who can share their poster with us?VolcaniceruptiontsunamifloodwildfiredroughttornadohurricanelandsideStart/Pause