1、英语（选修第三册）Unit 3 Back to the past Reading (II)I. Learning objectivesBy the end of the lesson, students will be able to:1. understand the usage of the following words and phrases: strengthen, dismiss, acknowledge, influential, insist, panic, on behalf of, be loaded with, regardless of, allow for;2. us
2、e the above words and phrases in new situations;3. find out words and phrases related to navigation;4. learn to use facts to illustrate points.II. Key competence focus1. Understand some new words and expressions.2. Use the new words and phrases correctly.III. Predicted area of difficulty1.Use the ne
3、w words and phrases correctly.2.Use facts to illustrate points.IV. Teaching proceduresStep 1 Leading inThe teacher leads students to recall what they have learnt in the last class.T: Last class we learnt something about Zheng He and Christopher Columbuss sailing the oceans.Then can you have a summar
4、y according to their first voyages, places of arrival, total number of voyages and significance?【设计意图：回归课本，帮助学生回忆前一日所学的文章内容；培养学生的语言概括能力。】Step 2 Learning words and phrasesThe teacher leads students to learn some key words and phrases in the articles.1. Word study:strengthen(1) T asks Ss to explain th
5、e meaning of strengthen in the first article, line 15.T: Zheng He totally had seven voyages, which had a great influence on the countries and regions where he set foot. So his efforts made the harmonious relations with these countries and regions stronger. Then do you know the meaning of strengthen
6、here? Then the teacher gives an example: The new evidence will strengthen their case. 新的论据将使他们的论据更为充分。(2) T introduces the noun of strengthen: strength and asks students to think more nouns that can be converted to verbs by adding the suffix -en.Eg.: frightfrighten lengthlengthen heightheighten thre
7、atthreaten2.Word study: dismiss(1) T asks Ss to explain the meaning of dismiss in the first article, line 18.T: Some historians regarded the records of these voyages as legends, so they thought the records were not important and not worth thinking about, then do you know what the word dismiss means
8、here? Then the teacher gives an example: We can safely dismiss their objections. 我们对他们的异议完全可以不予理会。(2)T introduces collocations of dismiss and asks Ss to translate some sentences. dismiss sb./ sth. as . 不予考虑；对.不屑一提我们大可以把他的话当作笑话而不予理会。_. dismiss sth. from sth. 去除、摒除（思想、感情等） 摆脱了恐惧，她爬得更高了。 _, she climbed
9、 higher. dismiss sb. from sth.解雇；开除；免职 她犯了严重的错误，因此老板把她免职了。 She made serious mistakes. Therefore, _.3.Word study: acknowledge(1) T asks Ss to explain the meaning of acknowledge in the first article, line 20.T: Zheng He made so great achievement, and people widely accept that the achievement was true
10、and he had a particular status in the navigation history.Then can you guess the meaning of acknowledge?Then the teacher gives an example:E.g. Mr. Zhang is widely acknowledged as the most talented and humorous teacher in our school. 张老师被认为是我们学校最有才、最幽默的老师。(2)T introduces a collocation of acknowledge a
11、nd asks Ss to translate the sentence. acknowledge sb./ sth. as . 承认.是. 普遍认为司马迁是中国最伟大的历史学家之一。_._.4.Word study: influential(1) T asks Ss to explain the meaning of influential in the first article, line 21.T：Zheng He made great achievements in sailing the oceans, and he had a lot of influence on the re
12、lated exploration, so here what does the word influential mean?Then the teacher gives an example:E.g. Im reading a highly influential book written by Mr. Zhang. 我正在读一本由张老师写的很有影响力的书。(2)T introduces a collocation of influential and asks Ss to translate the sentence. influential in (doing) sth. 在.有很大影响
13、 这一因素对做出决定是有很大影响的。 The fact is _._.5. Word study: insist(1) T explains the usage of this word:insist on sth./ insist that .: to demand that sth. happens or that sb. agrees to do sth. 坚决要求；坚持Eg. They insisted on being given every detail of the case.She insisted on him/ his wearing a suit. The boss in
14、sists that she come.=The boss insists that she should come. a. insist on (sb./ ones) doing sth. 坚持要(某人)做某事 b. insist that . (should) do sth. 坚持要.(虚拟语气）insist on sth./ insist that .: to say firmly that sth. Is true, especially when other people do not believe you. 坚持说；固执己见Eg. He insisted on his innoc
15、ence. = He insisted that he was innocent. insist that . . 坚持说.(不用虚拟语气）(2) The teacher asks students to decide the meaning of insist on in line 5 of the second article.6. Word study: panic(1) T asks Ss to explain the meaning of panic in the second article, line 11.T: Because during Columbuss voyage,
16、one of the ships was leaking badly and this put everyone on this ship in grave danger, the men on the board had a sudden feeling of great fear that cant be controlled. Then can you guess the meaning of the word panic?Then the teacher gives an example:E.g. She phoned the doctor in panic. 她在惊慌中打电话给医生。
17、(2)T introduces a collocation of panic as a noun and asks Ss to translate the sentence. As a noun in panic 惊恐、恐慌 当船漏水的时候他们惊慌逃出。_.As a verbEg. I panicked when I saw smoke coming out of the engine. panic_(过去式）_（过去分词）7. Phrase study: on behalf of(1） T: In line 7 of the first article, on behalf of means
18、 as the representative of sb. For example, on behalf of the school English club, I would like to thank you all for your active participation. The teacher also tells students that on behalf of equals on ones behalf.(2） T presents some sentences and asks Ss to guess other meanings of the phrase on beh
19、alf of/ on ones behalf. Mr. Green cant be here, so his wife will accept the prize on behalf of him. _ Dont worry on my behalf. _ They went to the poor rural areas on behalf of those poor children. _8. Phrase study: be loaded with(1) T: In line 8 of the first article, Zheng Hes ship carried a load in
20、cluding china, silk, tea and other treasures. So here be loaded with means carrying a load. (2) The teacher presents another sentence and asks students to guess the meaning of be loaded with. Dont have too many cakes, because they are loaded with high calories. _ 9. Phrase study: regardless of(1) T
21、asks Ss to explain the meaning of regardless of in the second article, line 11.T: Columbus met big challenges during the voyage, but he paid no attention to these and he managed to keep everyone out of danger. Then can you guess the meaning of the phrase regardless of.(2) The teacher asks students t
22、o translate this sentence: 俱乐部接纳新成员时不分年龄。The club admits _.10. Phrase study: allow for(1)T asks Ss to explain the meaning of allow for in the second article, line 22. T: The period that witnessed many important geographical findings also included an international exchange of ideas and cultures. So w
23、hat does the phrase allow for mean?(3) T asks Ss to translate one sentence:考虑到交通堵塞，到那里大约需要两个小时。_.【设计意图：通过梳理文本中的重点单词和短语，培养学生的学习探究能力。在学习这些重要表达时，充分调动学生的自主能动性，让他们学会联系上下文猜测单词的意思，学会归纳和总结某些重点词的用法。另外教师创设新的语言情境，鼓励学生理解和运用重点单词和短语，为下一步语言知识在新语境中的运用打下基础。】Step 3 Filling blanksT asks Ss to finish B1 on page 33. T:
24、As we all know, Zheng He made a total of seven voyages, and in 1407 he travelled to Boni. After that, China established very good relations with this state. Here Ill show you one story about the Tomb of the King of Boni. Please complete the story with the correct forms of the words and phrases in th
25、e box.Answers: (1)harmonious (2) influential (3) proof (4) on behalf of(5)was loaded with (6) strengthened (7) subsequent (8)acknowledged【设计意图：通过练习让学生学会在新的语境中运用词汇和短语，考查学生对文本重点语言知识的理解和运用能力。】Step 4 Building vocabulary about navigationThe teacher asks students to find the words and phrases related to n
26、avigation in the articles and think of more on their own.Words and phrases for peopleWords and phrases for thingsWords and phrases for actions【设计意图：先让学生再一次快速阅读文章找出和航海有关的词汇，然后学生进行相应的头脑风暴活动，想出更多相关词汇，从而培养学生建立相关主题词汇库的好习惯。】Step 5 Illustrating points with facts1. The historical articles use facts to illus
27、trate their points,so T asks Ss to find some facts in the articles.(1) Find the examples in the first article to support the point that ancient China has advanced navigation technology.(2) Find the facts in the second article to support that Columbus was a great navigator with good qualities.2. T as
28、ks Ss to write a short article to support the point that some famous man made great contribution in Chinese history.3. T presents one possible version to students.【设计意图：通过文本中的事实让学生明白历史类文章需要事例来佐证才更让人信服。之后让学生学以致用进行小作文练习，从而让学生学会运用事实来佐证观点。】V. Homework1. Remember the sentences listed on pages 8889 well enough to recite and try to write them down from memory. 2. Polish your writing.