Unit 5 Look into Science.Lesson 28 The Study of Living Things 教案

Unit 5 Look into Science
Lesson 28 The Study of Living Things
1. Analysis of the Students
The students of Grade 9 have mastered certain vocabularies，expressions and structures. They also have the abilities of self-teaching and working in groups. Most of them are willing to express their opinions in English.21教育网
2. Analysis of Teaching Content
Lesson 28 is the fourth lesson in Unit 5, Book 5.This unit focus on the subject Look into science, also teach the students something about science. Students cares about the subject because it is close to everyone. Lesson 28 mainly talks about the mysteries of butterflies, let students to know more biology. 21·cn·jy·com
【知识目标】
To master the word: biology, butterfly, migrating, fantastic, completely, grandchildren, female, chemical.www.21-cn-jy.com
2. To master the expressions: draw one’s attention, return to…, as many as, lay eggs, at a university, small piece of forest, leave for.【来源：21cnj*y.co*m】
【能力目标】
Improve the students’ ability of speaking, listening, reading and writing. Describe some mysteries of nature.2·1·c·n·j·y
【情感目标】
Know more about the nature, Create the cooperation among the students.21*cnjy*com
【教学重点】
To master the biology.
【教学难点】
To learn the adverbial clauses.

Tape recorder, Multimedia
Step 1. Warm-up
Free talk:
Think about it!
1. Would you like to be a biologist when you grow up? Why or why not?21cnjy.com
2. What mysteries of nature do you know about?
Step 2. Presentation
Lead in: Show the picture of butterfly.
Explain the new words.
Show some butterflies and ask students: are they beautiful? What do you know about them?
Read the lesson by themselves.
Explain the language points:
have been doing sth.：“一直在做某事”，表示从过去某时开始的某个动作或状态一直延续到现在，而且还在进行。表示动作的延续性、重复性以及感彩等。
draw one’s attention：“吸引某人的注意力”。
the phrases about attention:
draw one’s attention to sth.
使某人注意某事
pay attention to sth.
注意、留心
give one’s attention to sth.
关心
catch one’s attention
引起某人注意
as…as… 像......一样否定形式：not as/so... as...
eg: I do my homework as carefully as my brother does.21世纪教育网版权所有
我做作业像我哥哥一样认真。
spend: 度过，花(钱/时间)”
过去式和过去分词都是spent。
spend time/money(in) doing sth.
花费时间/金钱做某事
spend time/money on sth.
在某物上花费时间/金钱
spend time with sb.
和某人一起度过时光
lay eggs : 产卵
lay的过去式和过去分词都是laying.
cut down: 砍伐
both... and...: ......和...... 用于连接两个并列成分。当它做主语时，谓语动词使用复数形式。
=not only... but(also)... 不仅......而且......
反义词组：neither... nor... 既不......也不......
Step 3. Practice
Listen and follow to the tape.
Read the lesson and complete the table on page 72.【来源：21·世纪·教育·网】
Check the answers.
Work in groups of three to play a game.
Task tips: Each group should prepare some pieces of paper and divide them into three columns. Student A writes a person’s name in the first column, folds the paper and passes it to Student B. Student B writes a statement beginning with “who”, folds the paper and passes it to Student C. Student C must finish the sentence and read it out loud.21·世纪*教育网
Step 4. Consolidation
Writing:
Join the sentences to make attributive clauses.
Example:
We did some experiments yesterday. The experiments were fantastic.www-2-1-cnjy-com
The experiments that we did yesterday were fantastic.2-1-c-n-j-y
2. Enjoy a video and to know nature more.
Step5 Homework
1. Listen and read.
2. Finish exercises of this lesson.
略。