Teaching aims and requirements:
1. Get a better understanding of the whole passage.
2. Master the language points in the passage.
Teaching procedure:
Step 1. Lead-in
1. What was Darwin famous for?
2. What is the main idea of the book?
Step 2 Fast reading
1.How many parts can the passage be divided into according to the meaning of the passage?
2. Summarize the main idea of each part.
Part I -- Para 1-3:
Part II--Para 4-5:
Part III--Para 6:
Part IV--Pa7:
Step 3 Careful reading
Read the passage carefully and do the comprehension on the next page.
1.Darwin observed that the birds with __ would eat___.
A. small beaks ; hard seeds B. broad beaks；hard seeds
C. hard beaks；hard seeds D. broad beaks；soft seeds
2.Darwin joined the scientific expedition on___．
A.Endeavour B.Tahiti C.the Beagle D.space
3. What was the purpose of Mendel’s experiments?
A.His purpose was based on his love nature.
B. His purpose was to support the ideas concerning the influence of environment upon plants.
C. His purpose was based on the influence of environment upon plants.
4. The belief of the scientists of the nineteenth century was _____
A.The influence of the environment led to the development of new species.
B.The influence of the environment had no effect on new species.
C. different varieties of species depended on different environments
D. Genetics led to the development of new species.
5. The research by Darwin, Mendel and Turesson shows that___.
A.genetics is more important than the environment to plants
B genetics is less important than the environment to plants
C. both genetics and the environment are important to plants
D. neither genetics nor the environment is important to plants
Step 4 Language points
1.(P1.L1) …to experiment and do whatever he liked.
句中whatever引导名词性从句,在句中作宾语,它还可以作主语表语等.当引导名词性从句时不能用no matter what替换.
2.(P1. L4) Darwin’s observations on that voyage led him to write his famous book…
lead to 是一个活跃的词组，意为“通向”、“导致”、“使得”等等，其常见的结构是 lead to sth. 或 lead sb.to sth . 或lead sb. to do sth.。如：
All roads______ Rome. 条条道路通罗马。
There is only one path ________ the castle. 只有一条小路通往城堡。
Hard work and proper ways will ________success. 勤奋的工作和正确的方法会使你成功。 What______________________? 是什么使得你相信他的?
3.(P2. L2) …and deserved special attention.
deserve vt. 这个词字面意思是“值得”、“该受到”，可褒可贬。用到的场合其实挺多的。
① I think you're playing with fire. You deserve it! 你是老鼠戏猫，真是自作自受！
② How dare you do this to me? You deserve a kick in the ass!你竟敢这样对我？找打啊？
③ Such a little boy has to work to support his family. It deserves sympathy.
If you do wrong, you deserve punishment.
If you do wrong, you deserve punishing.
If you do wrong, you deserve to be punished.
类似的词还有：need; want; require
4.(P.2,L1)It was … that give him the key to his new theory.使他获得创建新理论的要领.
the key to sth./doing sth. …的关键, …的答案
①This is the key to the improvement of their living conditions.
② This is the key to world peace.
the answer to_____________
the entrance to__________
the solution to____________
the bridge to____________
the limit to______________
the note to_______________
the guide to____________
the response to____________
the attitude to_____________
the momunent to_________________
5.(P4. L4) …the ideas concerning the influence of environment upon plants...
a declaration concering the war关于战争的宣言
concern oneself with/in 关心… be concerned in从事… ,与… 有关连
as concerns=concering关于…
① I wrote to the head of the firm concerning a business arrangement.
② He refused to answer questions concerning his private life.
6.(P5. L4) It would take a next generation of scientists to bring the importance of the environment on species back in view.
bring sth back in view重现在视野
come in view出现在视野
in view (of)在视力所及的范围,看得见的地方
in view 可以看见；在考虑之中；计划好的
① There was not a house in view.（看见）
②He wants to find work, but he has nothing particular in view. (考虑)…但他没有具体的目标。
③ In view of his youth, the police have decided not to press charges. (考虑到； 由于；鉴于)
7.(P.7,L3)such as soil conditions, is of equal importance to the output of crop.
对粮食农作物产量具有同样重要的意义.
be of +抽象名词=be+该词的形容词
be of importance=be important
be of value=be valuable
be of +the size/age/weight/kind/height etc.这类抽象名词没有相应的形容词.
They are of the same age but of different height.他们同龄但不一样高.
Useful phrases in this passage:
1. 享受做试验的充分自由 Enjoy all the freedom to experiment
2. 值得特别重视 Deserve special attention
3. 明显与…相关 show a clear relationship with
4. 有关 Be related to
5. 用花朵和豌豆实验 Conduct his experiments with flowers and peas
6. 代代相传 Pass on from one generation to the next
7. 导致遗传学的产生Give birth to the science of genetics
8. 形成理念 Form the belief
9. 研究玫瑰的变异情况 Study many varieties of garden roses
10. 重新认识环境对物种的重要性 Bring the importance of the environment on spices in view
11. 大叶 Broad leaves
12. 外形改变 Change one’s appearance
13. 适应新环境 Adapt to the new environment
14. 靠近地表生长 Grow close to the ground
Step5 Writing
达尔文年轻时想干什么就干什么。他对物理化学和植物学有着特别的爱好。22岁时，
他就应邀参加了“小猎犬号”的科学考察。他在考察中的仔细观察使他写出了著作《物
种起源》。这次探险也给了他创建新理论的钥匙。
门德尔也做了有关环境对植物影响的实验。他发现许多特性是代代相传的，并不受环境
的影响，这导致了遗传学的产生。杜尔松通过研究也发现如果植物从某一生长地迁到另
一生长地，他们的外形也随之改变，以适应新的环境。
达尔文、门德尔和杜尔松的研究表明，遗传和环境都很重要。这一点值得特别重视。他
们的发现具有重大意义。
Step 6 Homework
Review what is learned in this period.
Write down the shot passage.
Finish English weekly (unit 4)
阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出最佳选项。
It was the night before the composition was due. As I looked at the list of topics (题目) , "The Art of Eating Spaghetti (意大利面条) " caught my eye. The word "spaghetti" brought back the
36 of an evening at Uncle Alien' s in Belleville 37 all of us were seated around the table and Aunt Pat 38 spaghetti for supper. Spaghetti was an exotic (外来的) treat in 39 days. Never had I eaten spaghetti, and 40 of the grown-ups had enough experience to be 41 it. What laughing 42 we had about the 43 respectable method for moving spaghetti from plate to mouth. 44 , I wanted to write about that, but I wanted to 45 it down simply for my own 46 , not for Mr. Fleagle, my composition teacher. 47 , I would write something else.
When I finished it the night was half gone and there was no 48 left to write a proper composition for Mr. Fleagle. There was no choice next morning but to 49 my work. Two days passed before Mr. Fleagle returned the 50 papers. He said, "Now, class, I want to read you a composition, “The Art of Eating Spaghetti'. "
My words! He was reading my words out 51 to the whole class. 52 laughed, then the whole class was laughing with open-hearted enjoyment. I did my best not to show 53 , but what I was feeling was pure happiness, 54 my words had the power to make people 55 .
36. A. memory B. thought C. knowledge D. experience
37. A. when B. where C. since D. after
38. A. cooked B. served C. got D. made
39. A. their B. past C. last D. those
40. A. none B. one C. earns D. neither
41. A. careful about B. good at C. fond of D. interested in
42. A. speeches B. lessons C. sayings D. arguments
43. A. nearly B. naturally C. officially D. socially
44. A. Especially B. Probably C. Suddenly D. Fortunately
45. A. settle B. put C. Bite D. let
46. A. work B. story C. luck D. joy
47. A. However B. Therefore C. As for him D. Except for that
48. A. time B. excuse C. way D. idea
49. A. give up B. continue C. hand in D. delay
50. A. written B. graded C. collected D. calmly
51. A. laid B. fast C. publicly D. calmly
52. A. People B. Nobody C. Somebody D. I
53. A. shock B. wonder C. worry D. pleasure
54. A. if B. for C. while D. although
55. A. excited B. satisfied C. think D. laugh