牛津译林版（2019）选择性必修 第三册Unit 3 Back to the past Reading (II) 教学设计

Unit 3 Back to the past Reading (II)（教学设计） I. Learning objectives By 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. use 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 focus 1. Understand some new words and expressions. 2. Use the new words and phrases correctly. III. Predicted area of difficulty 1. Use the new words and phrases correctly. 2. Use facts to illustrate points. IV. Teaching procedures Step 1 Lead-in T leads Ss to recall what they have learnt in the last class. T: Last class we learnt something about Zheng He’s and Christopher Columbus’s voyages. Then can you have a summary 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 phrases T leads Ss to learn some keywords and phrases in the articles. Word study: strengthen T asks Ss to explain the meaning of strengthen in the first article, lines 15–16. 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 here (2) T gives an example: The new evidence will strengthen their case. 新的证据将使他们的论据更为充分。 (3) T introduces the noun of strengthen: strength and asks Ss to think more nouns that can be converted to verbs by adding the suffix -en. e.g. fright→frighten length→lengthen height→heighten threat→threaten 2. 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 here (2) T 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。 (3) 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 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 and he had a particular status in the navigation history. Then can you guess the meaning of acknowledge (2) T gives an example: Mr Zhang is widely acknowledged ... ...