notes学习英语不只是来上课和记笔记.
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Unit 7 book 4
Research into Population Genetics
(1)
Period:2 periods
Teaching Material:New Horizon College English
Teaching Objectives:The students will be able to:
A: learn to use some important words such as: superficial, confine,
descend, feature, confront, assume, exploit, discount, resemble etc.
B: learn to use “more than” and “nothing less than”.
Teaching Procedure:
A. Pre-reading Activity(10minutes)
Questions will be asked: What do you know about population genetics?.
Am I a Born Genius (Group work)
B. While-reading Activity
1.Ask students some sign post questions to each paragraph to see how well the students
understand each paragraph and train Ss skimming ability. (Some of the questions are on P.31 Comprehension of the text)
2. Language Points: (refer to teachers’ book)
** the second sentence in Para 1: It stands as the most extensive survey to date on how humans vary at the level of their genes. Meaning: The book marks itself out as a survey that has so far obtained the fullest information on human genetic evolution.
** the phrase “more than” in the first sentence in Para 2. meaning: “having greater value or importance than sth. else” or “not only…, not just…”. More examples:
1)“More than” followed by a noun phrase:
Learning English is more than attending the classes and taking notes.学习英语不只是来上课和记笔记。
2)“More than” followed by a verbal phrase:
We more than waited from morning till night; we were worried. 我们不只是从早一直等到晚,还担心受怕。
3)“More than” followed by an adjective phrase:
She was more than glad to hear the news. 听到这个消息她非常高兴。
**line 21 in Para 3: And to ensure the populations were "pure", the study was confined to groups that were in their present locations as of 1492, before the first major movements from Europe began — in effect, a genetic photo of the world when Columbus sailed for America. Meaning: And to make sure the survey participants were not mixed with outsiders, the study was limited to districts where people had been living since 1492 and were not affected by the first major movements from Europe due to Columbus's discovery of America. In fact, what the scientists drew was a genetic map of the world in 1492.
** the second sentence in Para 5: One of them jumps right off the book’s cover:… the
meaning of the sentence is: One of the discoveries was right on the book's cover — a color map of world's genetic change, showing that Australians are most distant from the Africans in genes.
**in the middle of Para 5: But their genes tell a different story. Meaning: But the genes from Australians and Africans prove the wide assumption wrong.
C. Post-reading Activity
1.Ask students to sum up the main idea of the text and to analyze the writing techniques of the text.
2.Homework: Learn the words and phrases by heart and next week there will be a dictation; Do all the exercises on the book with translation done on the exercise book.
(2)
Period:2 periods
Teaching Material:New Horizon College English
Teaching Procedure:
1.Dictation of the words and phrases
ment on and appraise the exercises.
Writing techniques: Listing (P.184-185)。