2022年高中英语（人教大纲）第二册下：Unit20 Archaeology(第三课时)

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1、2022年高中英语（人教大纲）第二册下：Unit20 Archaeology(第三课时)Teaching Aims:1.Review some new words appearing in the last period.2.Review the use of “It”.Teaching Important Points:1.Review the words used as a noun or a verb appearing in the reading passage and learn to plete sentences with their correct form2.Master

2、the use of “It”.Teaching Difficult Point:The usage of “it” used in the subject position to stand for an infinitive or a clause,especially in the following sentence structure:It is said/believed/reported/thought/knownthatTeaching Methods:1.Revision to help the students consolidate the words learnt in

3、 the last period.2.Practise to help the students review the use of “It”.3.Pair work or individual work to make every student work in class.Teaching Aids:1.the multimedia2.the blackboardTeaching Procedures:CStep GreetingsGreet the whole class as usual.CStep RevisionT:In the last period,we read a pass

4、age about the King of Stonehenge.Have you remembered anything about it?Who can retell the text briefly?S1:Let me try.On May 3,xx,archaeologists found a grave of a man in England.Buried with him were some toolsT:Very good.Thank you for your performance.CStep Word StudyT:In the reading passage weve le

5、arnt,there are some words which mean the same as the definitions Ill give you.Now,listen to me carefully and then find the words and read them out.One student,one word.Is that clear?Ss:Yes.T:OK.Lets begin.No 1:the ruler of an empire,higher than a king.S2:Emperor.T:Yes.No 2:the clothes that people we

6、ar.S3:Clothing.T:Good.No 3:a long stick with a sharp point,used as a weapon.S4:Arrow.T:No.Think it over.S5:Knife.T:Yes.Lets go on.It means a deep round bowl used for cooking.Which word is it?S6:I think the word is “pot”,isnt it?T:Yes.No 5:a thin weapon that you shoot with a bow.S7:Arrow.T:Right.The

7、last one:the amount of space between two places.S8:The word should be “distance”.T:Very good.Now,please look at the screen.These words can be used as a noun or a verb.Can you say their meanings in Chinese?(Teacher shows the screen and let the students speak together.Meanwhile,give answers on the scr

8、een.)T：Now,lets do an exercise.Open your books at Page 77.Look at Ex.2 in Word Studyplete the sentences with their correct form and change them into Chinese.Ill give you a few minutes to prepare.After that,Ill ask some students to do them.T:OK.Time is up.Have you finished?Ss:Yes.T:Well.The first one

9、.Any volunteer?S9:The first blank should be filled in “date” used as a noun,while the second should be filled in “dates” used as a verb.Its Chinese meaning is:日期是2002年5月3日，考古学家在英格兰发现了一个男人的坟墓，此墓的历史可追溯到公元前大约2300年。T：Very good.The second one?S:Suggested answers:1.dress;dressed她喜欢黑颜色的裙子。她总是穿着黑色的衣服。3.foun

10、d;find去年，考古学家发现了一个男人的坟墓，最令人感到惊奇的发现物就是两只金耳环。4.transported;transport没有人知道这些巨大的石头是怎样经过这样的一段距离被运输过来的，有人说可能是外星人帮助了他们。5.trade;traded中西方国家之间的贸易有着悠久的历史。他们用珠宝和医药换取中国的茶叶和丝绸。6.pins;pin我正在寻找一些钉子。我想把这幅漂亮的画钉在墙上。CStep Grammar(Teacher shows some sentences on the screen.)T:Do the sentences A and B in each pair have

11、the same meaning?Ss:Yes.Both of the two sentences in each pair have the same meaning.T:Are there any differences?Whod like to try the first pair?S10:The subject of Sentence A is an infinitive phrase,while that of Sentence B is “It”.In Sentence B,“It” is used in the subject position to stand for the

12、infinitive phrase.The reason why the sentence is written like that is that we want to keep the balance of the sentence.Am I right?T:Yes.youre right.Sentence B is more usual in everyday English.The second pair,Li Ping,try please.S11:In Sentence A,the subject is a that-clause,while the subject of Sent

13、ence B is “It”,which is used in the subject position to stand for a clause.T:Very good.The sentence structure “It is+adj.+an infinitive/a clause”is very useful in learning English.(Teacher writes the sentence structure on the blackboard.)Can you make a sentence with the sentence structure?S12:Let me

14、 try.It is dangerous to go out alone at night.T:Good.Wang Wei,make a sentence with the structure.S13：It is natural that a child should love its mother.(Teacher writes the two sentences the students made on the blackboard.)T:Well done.Now.lets do an exercise.Turn to Page 78 and look at Ex.1 in Gramma

15、r.Rewrite the following sentences using “it”.Five minutes later,Ill check your answers.Suggested answers:1.It is a great honour for me to be able to join in the archaeological research project.2.Thanks to modern technology,it is possible to find out more facts about the man buried in the grave.3.It

16、is still unknown whether the man organised the construction of Stonehenge.4.It is a mystery how early men constructed Stonehenge without the use of modern technology.T:You all did very well.Now,please look at the screen.(Teacher shows the following on the screen.)In this pair,Sentence A and Sentence

17、 B have the same meaning.Sentence A includes a very useful sentence structure.Do you know what it is?Ss:Yes.It is:It be+p.p.+that-clause.(Teacher writes it on the blackboard.)T:Look at the blackboard,please.Here “It”is also used in the subject position to stand for a clause,but it is different from

18、what we reviewed just now.Is that so?Ss:Yes.T:The sentence pattern “It be+p.p.+that-clause”can often be changed into the sentence structure “People+vt.+that-clause”.The past participles used like that in the sentence structure are: reported, believed, thought, proven, known, hoped, suggested, etc.(T

19、eacher writes them on the blackboard.)T:Are you clear about that?Ss:Yes.T:OK.Lets do Ex.2 at Page 78.First do them by yourself,then check your answers with your partner.After a while,Ill ask some of you to read out your sentences.Suggested answers:1.It was said that it was an important archaeologica

20、l discovery.2.It was reported that this man had been called the King of Stonehenge.3.It is believed that the two gold earrings found on the man are the oldest gold ever found in Britain.4.It is thought that European culture and techniques were brought to Britain through trade instead of war.5.It has

21、 been proven that the copper knives came from Spain and Western France.6.It is unknown to us how these huge stones were transported over a distance of 380 kilometres.CStep ConsolidationT:Now,please look at the screen.Translate the sentences into English using “it”.1.据报道，数十名儿童在事故中死亡。2.电脑有可能取代人的位置吗？3.

22、核对这些实验的结果是重要的。4.处理这样的问题，对你来说是困难的。5.独自一人去海里游泳是危险的。6.众所周知，中国是一个文明古国。Suggested answers:1.It was reported that dozens of children died in the accident.2.Is it possible that puters can take the place of human beings?3.It is important that the experiment result should be checked.4.It is difficult for you

23、to deal with such a problem.5.It is dangerous to go to swim in the sea alone.6.It is well known that China is a country with an ancient civilization.CStep Summary and HomeworkT:In this class,weve reviewed some new words appearing in the last period,especially some words used as noun or verb.Weve als

24、o reviewed the use of “it”,which is used in the subject position to stand for an infinitive or a clause.After class,you need to do more exercises to consolidate what weve reviewed about the use of “it”.Besides,prepare for the next period.Thats all.See you tomorrow!Ss:See you tomorrow!CStep The Desig

25、n of the Writing on theBlackboardUnit 20 ArchaeologyThe Third PeriodGrammar:The use of “It”.It is+adj.+an infinitive/a clause.e.g.It is dangerous to go out alone at night.It is natural that a child should love its mother.It be+p.p.(said,reported,believed,thought,proved,known,hoped,suggested,etc.)+that-clause.(=People say/report/believe/thinkthat-clause.)CStep Record after Teaching