Lesson 28 The Study of Living Things教学活动设计方案

Lesson28: The Study Of Living Things教案

教学目标

知识与技能：

1. 学会本课重点单词fantastic biology, butterfly, in fall, draw one's attention, cut down, as many as, lay eggs, leave for及定语从句

2. 学会用思维导图整理文章脉络大意。

3. 学会用思维导图对文章中重难点句子进行分析

过程与方法

通过绘制思维导图学会精读文章

情感态度价值观

在学习中积极思考，勇于用英语表达自己的看法。培养热爱科学的态度和探究自然秘密的勇气。

教学过程

Step1：Warming up 小组学生出示预习的思维导图

1.

What do you know about biology? 2.

The migration of the living things. 3.

The fantastic facts of the living things. 通过展示思维导图，激发了同学们对本节课知识学习浓厚的兴趣，学生迫切地想要了解本节课的知识，教师在课前进行适当的指导学生，提高学生绘制思维导图的能力及兴趣。

Step 2：Presentation 1.

探究课文，自主找出新单词和词组。

学生快速浏览文章，找出新单词和词组，排除单词词组障碍。有利于开展下面的阅读教学

2.

Listen to the radio and answer questions. Listen write true or false (1). Dr. Chip Taylor studies one kind of American butterfly.

(2). In Mexico ,the butterflies always return to the same small piece of forest . (3). The butterflies lay eggs on only plant:

(4). Mexico has begun to protect all of its forest . 3. Divide the text into three parts, according to

(1) Things that Dr. Taylor worries about

Paragraph

1 and 2 (2) Fantastic facts about the butterflies

Paragraph

3 and 4

(3) Things that scientist can not understand Paragraph

5 and 6

4 . Carefully Reading 1. In the United States and Mexico, farmers use chemcals that kill milkweed. ( F ) 2. Do the females lay eggs on only one plant? ____Yes, they do.____________________________. 3. What does Dr. Chip Taylor study?

____he studies one kind of North American butterfly.

4. Here, as many as ___230 million________ butterflies spend the winter. 5.In Mexico, the butterflies always return to the same small piece of forest,which is only 20 kilometers wide . ______在墨西哥，这种蝴蝶总是回到仅有20千米宽的同一小片森林。

Read paragraph and1 tell true or false 1.Dr. Chip Taylor teaches physics at a university. F 2. The migrating butterfly travels 2000kilometres south in fall. F 3. There are many fantastic facts about the migrating butterfly T Read Para. 2(2段) and fill in the blanks. Fantastic

facts

about

·

The butterflies always _______ to the same

small piece of forest and______ the winter there.

·The butterflies that return to the south are the great-great butterflies

grandchildren of the butterflies

that _______the north.

· The females ____ eggs on

only one plant: milkweed.

Read Para. 3 and 4 (3 4 段). Answer the questions 1.What are the things that Dr. Taylor worries about?

In Mexico, people cut down the trees that the butterfly need to rest on.

In the U.S. and Canada, farmers use chemicals that kill milkweed.

2. What have the United States and Canada encouraged the farmers to do?

They have encouraged the farmers to use less chemicals. Read Para. 5 and 6(5 6 段).

What are the things that scientists understand?

A.

How do the butterfly know when to fly south ? B.

Why do they lay eggs on only one plant: milkweed? C.

How do the great-great grandchildren of the butterflies find the same forest?

Read the lesson and complete the table.

Grammar :

Attributive Clause In Mexico, the butterflies always return to the same small piece of forest, which is only 20 kilometres wide. The butterflies

that

return to the south are the great-great grandchildren of the butterflies

that left for the north. In Mexico, people cut down the trees

that the butterflies need to rest on. In the United States and Canada, farmers use chemicals

that kill milkweed.

定语从句

(

) 1.The man _____ is talking to our teacher is Betty’s father.

【2013潍坊】

A .which

B. whom

C. who

D. what (

)

2.—Do you know Mo Yan?

—Of course! He is the famous writer _____ won the Nobel Prize.

【2013福州】

A .who

B. whom

C. which

D. what

(

) 3.A friend is someone _______says, "What! You too? I thought I was

the

only one!”

【2013河南】

A. who

B. which

C. what

D. whose (

) 4. A Wechat (微信) is an invention ______ can help people talk to friends, share photos, ideas and feeling freely.

【2013 甘肃】

A. which

B. who

Affective

Education We have only one earth .Let’s take good care of it ! We should try our best to protect our environment and make our earth more and more beautiful ! Homework 根据思维导图写一篇关于这篇文章的关于蝴蝶的信息

C. whose

D 不填