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

课件12张PPT。Lesson 28
The Study of Living Things1.Would you like to be a biologist when you grow up? Why or why not?
2.What mysteries of nature do you know about?Think about itNew words:生物
蝴蝶
迁徙的
奇异的
完全地
外孙（女）
雌性
马利筋（一种植物）
化学物质
令人费解的biology n.
butterfly n.
migrating adj.
fantastic adj.
completely adv.
grandchildren n.
female n.
milkweed n.
chemical n.
puzzling adj.1.引起某人的注意2.回到、返回3.多达4.下蛋5.在大学里
6.小片的森林
7.动身去某地 draw one’s attention 探究课文 找短语return to…as many as
lay eggs
at a universitysmall piece of forestleave for
1. In the United States and Mexico, farmers use chemcals that kill milkweed. ( )
2. Do the females lay eggs on only one plant?
________________________________.
3. What does Dr. Chip Taylor study?
_______________________________________________.
4. Here, as many as ___________ butterflies spend the winter.
5.In Mexico, the butterflies always return to the same small piece of forest,which is only 20 kilometers wide .
___________________________________________中考题型 课堂练FYes, they do
He studies one kind of North American butterfly230 million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。Language Points:1. 有关attention的短语
2. as…as 的用法
3. lie 与 lay的用法 attentiondraw one’s attention to sth.
(使某人注意某事).2. catch one’s attention
(引起某人注意)3. pay attention to sth.
(注意、留心) 4. give one’s attention to sth.
(关心)as…as…1. He is ___________ his father.(像……一样高)
2. I do my homework ___________ my sister does.(像……一样认真)
3. They see ___________ one hundred students in front of the library.(像……一样多)
as tall asas carefully asas many aslie 与 laylay (下蛋) --- laid --- laid --- laying
lie (说谎) --- lied --- lied --- lying
lie (平躺) --- lay --- lain --- lying
The hens _____ (lay) eggs every day.
Have you ever ______ (lie) to your parents?
layliedFill in each blank with the proper word from the brackets:
1. This is the __________(identify) hotel that we stayed in
last year.
2. Your brothers are people _________(relate) to you.
3. Do you know who is the _________(own) of the house?
4. Your body uses this pattern _________ (build) itself.
5. You have your own DNA, but it repeats the patterns
from your __________(parent) DNA.
6. Some health problems come from your family’s DNA.
_________(science) can look for these problems in your
DNA.identicalrelatedownerparents’Scientiststo build巩固练习 查一查Homework:1.To grasp the contents
of this lesson.
2.Preview Lesson 29.课后作业 写一写Goodbye！