冀教版 英语课件：九年级下unit2 dna lesson10

课件16张PPT。
Lesson 10
What Is DNA?Fill in each blank with the proper word from the brackets:
What is ___________(big) animal in the world?
These oranges are __________(juice). Please have some.
A horse is a __________(help) animal.
Look! My computer doesn’t work. I need __________
(repair) it. Does your computer need
_____________________ (repair)?
5. – Would you mind __________(open) the door for me?
-- No, not all. I have made up my mind ______(help) you.
6. The boy ________(call) Mike was once a thief, but now
he __________(call) “living Lei Feng”.juicythe biggesthelpfulto repairrepairing/to be repairedopeningto helpcalledis called根据汉语意思完成句子，每空一词：
我们都叫他小李。
We all _________ _________ Xiao Li.
2. 昨天晚上我和父亲同时到家。
My father and I got home _____ ______ _____ _______
yesterday evening.
3. 这个动物的耳朵像兔子的耳朵。
The animal’s ears ________ _________ the rabbit’s.
4. 他们把不同的零件放在一起。
They _________ these different parts __________.
5. 我可能会把恐龙和兔子结合起来。
I might _________ a dinosaur _________ a rabbit. call himat the same timeare/look likeputtogethercombineandA task: Make a new living things!

What if you could combine other animals or plants
to make something new?
Think:
What animals or plants would you choose? Why?
What would your new animal or plant be like?
What would you name your new animal or plant? Why?

Write down your ideas. Talk about them with your group.
Draw a picture of your new animal or plant. Have fun! What if …, 如果……该怎么办/会怎么样？Think about it!
Do you and the students near you look the same? What is the same? Are there differences between you and them?
What you know “DNA”?
What can scientists do with “DNA”?
“DNA” is short for deoxyribonucleic acid.What is DNA?
What is a blueprint?
What are identical twins?
What does identical mean?
What does identify mean?
What do you know about DNA?Read carefully and answer the following questions: pattern Identical twins are two children that grew from the same egg. They have identical DNA. They are clones. the blueprint of life the same to determine( 鉴定) Language notes:When you were a baby, your body already knew the answers to these questions. to prep. “……的”2. A blueprint shows where to put all the parts of the house.
It’s the pattern (that/which) you use to build the house. the answer to the question
the key to the door3. Except for identical twins, each living thing has its own unique DNA. except prep. “除……之外” 不能用于句首
except for “除(瑕疵)，若无” Language notes: Every one of us, ________ him, went to the park.
I usually go to school by bike ________ on rainy day.
She is a good girl __________ her weak health condition.
__________ his carelessness, he is a good student.exceptexceptexcept forExcept for except “除……之外”
besides “除……之外(还有)”
but 和except的用法大致相同 除了他以外，我们都去了。
We all went _______ him.
除他去以外，我们大家也都去了。
We all went ________ him.
盒子里除了一张卡片外，没有任何东西。
There is nothing __________ a card in the box.exceptbesides but/exceptLanguage notes:4. Except for identical twins, each living thing has its own unique DNA.
Your DNA is in every part of your body. each adj. & pron. “每一，每个” 指两个或两个以上
的人或东西，强调个人或个别
every adj. “每一，每个” 只能指三个以上的
数量，强调全体或全部 _______ has a book. _______ of us has a book.
We ________ have a computer.
____________ student has a book.
There are a lot of tress on ________ side of the street.EachEacheachEach/Every 她认识班级中所有的学生。
She knows _______ pupil of the class.
她认识班级中每一个学生。
She knows _______ pupil of the class.everyeacheachLanguage notes:5. From your DNA, scientists can identify not only you but also people related to you. identify v. “确认；鉴别”
identical adj. “完全相同的” not only … but also … “不但……而且……” 用来连接
语法结构相同的成分，连接并列的主语时，谓语动词要
用“就近原则” Not only you but also he ________(like) pop music.
He can not only sing but also dance.
He can speak not only English but also French.
You can eat lunch not only at school but also at home. likesLanguage notes:6. Your mother and father related to you. So are your sisters and brothers. Tom can speak French. So can Jack.
I am a good student. So is she.
I watched TV last night. So did Mary.
They have finished their homework. So have we.= Your mother and father related to you. Your sisters and brothers are related to you, too. Tom can’t speak French. Neither can Jack.
I am not a good student. Neither is she.
I didn’t watch TV last night. Neither did Mary.
They haven’t finished their homework. Neither have we. 区别：She is a good teacher. So am I.
She is a good teacher. So she is.Fill in the blanks with proper prepositions or conjunctions:
Do you know the answers ________ the questions?
DNA is ________ a blueprint.
You composition is quite good except ________ a few spelling mistakes.
Are you friends related ________ you?
Are your arms long ________ short?
Your bones have the same DNA _______ your skin.
You have your own DNA, but it repeats the patterns ________ your parents’ DNA.
Some health problems come ________ your family’s DNA. Scientists can look _______ these problems in your DNA. tolike for toor asfrom fromforFill in each blank with the proper word from the brackets:
1. This is the __________(identify) hotel that we stayed in
last year.
2. The two babies are __________(twin).
3. June first is ___________(child) Day.
4. Your brothers are people _________(relate) to you.
5. We should eat _________(health) food.
6. Do you know who is the _________(own) of the house?
7. A blueprint is a ____________(draw).
8. Your body uses this pattern to build __________(it).
9. You have your own DNA, but it repeats the patterns
from your __________(parent) DNA.
10. Some health problems come from your family’s DNA.
_________(science) can look for these problems in your
DNA.identicaltwinsChildren’srelatedhealthyownerdrawing itselfparents’Scientists同义句转换，每空一词：
1. Both he and she are coming to the party.
____ ____ he ____ _____ she _____ coming to the party.
2. Tom draws well. Linda draws well, too.
Tom draws well. _____ ________ _______.
3.Dad’s eyes are not very big. Mine are not very big, either.
Dad’s eyes are not very big. ________ _________ ______.
4. Sometimes they can help you before you fall ill.
Sometimes they can help you before you _________ ill.
5. Lucy is as old as Lily.
Lucy has _______ _________ age as Lily.
6. We all went to the park, but Jenny didn’t go.
We all went to the park ___________ Jenny.
7. John is from Canada. John ______ from Canada. Not onlySo does Linda but alsoisNeither are mine becomethe sameexcept/butcomes根据汉语意思完成句子，每空一词：
你穿多大号的鞋？
_______ _______ shoes do you wear?
2. 我们用蓝图建造房子。
We _______ a blueprint ______ _______ a house.
3. 除了窗子小外这座房子很漂亮。
The house is beautiful ______ _____ the small windows.
4. 你的头发和皮肤有同样的DNA。
Your hair has ______ _______ _______ _____ your skin.
5. 她不但会唱歌，而且会跳舞。
She can _____ ______ sing ______ ________ dance.
6. 每一个生物都有自己独特的DNA。
______ _______ ______ _______ its own unique DNA.
7. 昨晚他去看电影了，我也去了。
He went to see a film yesterday evening. ____ ____ ____.What sizeuseto buildexcept forthe same DNA asnot onlybut alsoEach living thing hasSo did I A task:

What things about you show your parents’ DNA?
With a partner, talk about things that are the same
between you and your parents. You can start like
this:
Mom is tall. So am I.
Dad’s eyes are not very big. Neither are mine.