高中英语 Period2 Grammar;Function;Pronunciation（Module5 A Trip Along the Three Gorges） 教案 外研版必修4 Period 2Grammar;Function;PronunciationThe General Idea of This PeriodGrammar in this module is the revision of modal verbs.This part can be led in by doing some exercises of modal verbs.In this part,well revise the usage of modal verbs,such as can,could,must,have to,should,etc.Modal verbs are important and difficult English grammar points and it is rather confusing.Ask the students to pay much attention to them.In this part,well deal with four activities.The function in this module is talking about obligation,permission and prohibition.First,the teacher may ask the students to speak out the way used to express obligation,permission and prohibition.The teacher can give them some examples.Then ask the students to do the exercises.There are four activities in pronunciation.The aim is to make sure that the students can pause at the end of each sense group,not making the sentence broken.Teaching Important PointsEncourage the students to sum up grammatical rules and the way to show obligation,permission and prohibition.Teaching Difficult PointsTo distinguish the usage of modal verbs and pause at the end of each sense group.Teaching Methods Individual work and pair work to make every student work in class.Teaching AidsMultimedia,tape-recorder & a blackboardThree Dimensional Teaching AimsKnowledge and SkillsMake the students master modal verbs and use them correctly.Make sure the students can show their obligation,permission and prohibition properly.Train the students pronunciation and pause at the end of each sense group.Teaching and StrategiesMotivate the students enthusiasm in taking part in the class.Feelings and ValueThrough the revision of modal verbs and the way to show obligation,permission and prohibition,the students will surely express themselves correctly and properly.Teaching ProceduresStep 1 Revision (Greet the students as usual.)T:First,Ill show you a short passage and you give me the missing words in the passage A Trip Along the Three Gorges.(Show the following passage on the screen.)In August,1996,Peter Hessler,a young American teacher of English,and a colleague decided to take a boat 1along the Three Gorges.They bought tickets 2the Jiangyou boat.They left the docks on a beautiful afternoon.As the sun set they 3 at Fengdu.They slept through the first gorge,which is called the Qutang Gorge.At Wushan they made a 4 up the Daning river.The next day they went through the Wu Gorge.They passed the Xiang River,home of Qu Yuan,the 3rd century BC 5.Along the Yangtze River,every rock looked like a person or animal,every stream that joined the great river 6its legends,every hill was 7 with the past.As they came out of the third gorge,the Xiling Gorge,they sailed into the 8site of the dam.On a distant mountain was a sign 920-foot characters.”Build the Three Gorges Dam,10the Yangtze River,” it said.After three minutes preparation,ask several students to share their answers in the whole sentences.Then check the answers from the whole class.Suggested answers:1.downstream2.for3.docked4.detour5.poet6.carried7.heavy8.construction9.in10.ExploitAsk the students to read the whole passage together.Step 2 GrammarT:Okay,so much for the check-up.Now,we are going to revise modal verbs.How much do you know about modal verbs?Let me give you a quiz about modal verbs.Lets see how much do you know about them.(Show the following sentences on the screen.)Decide whether the sentences are true(T) or false(F).1.Modal verbs have only one form in the present tense.()2.Modal verbs all have a present,past and future form.()3.Some modal verbs have more than one meaning.()4.Modal verbs are followed by the infinitive with to.()5.To ask questions with modal verbs you use the auxiliary verb do.()6.To make a modal verb negative you use dont.()Ask the students to finish them individually,and then call back their answers.Suggested answers:1.T2.F3.T4.F5.F6.FT:No.2,4,5 and 6 are wrong statements.Do you know how to correct them?Whod like to do No.2.(Encourage the students to volunteer to answer your questions.)Sa:Not all modal verbs have a present,past and future form.For example:Must only has one form.T:Wonderful job!No.4.Sa:Modal verbs are followed by the infinitive without to.T:Yes,good.We all know modal verb +原形v.（Finish the four questions like this.）T:I can see you have know the basic rules of modal verbs.Lets do some other practice.Look at Activity 1.The sentences are all from the passage in reading.Complete them and answer the questions following them.(Show the following sentences on the screen.)1.They _go anywhere they wished.2.You _go on those ships.3.There _be any other foreigners.4.We just _show our passports.5.We _see the sun setting beh