"DNA-The Story of You"Look into Science! PPT download

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"DNA-The Story of You"Look into Science! PPT download

Part One: This is the shape of DNA.

“DNA” is short for deoxyribonucleic acid.

The two girls are twins. Maybe they have the identical DNA.

Fang Zuming looks like his father—Cheng Long.

New Words

DNA blueprint

general complex

twin repeat

identify pattern

related grandson

granddaughter instruction

DNA-The Story of YouPPT, Part 2: Read the lesson and answer the questions.

(1)What is a blueprint?

A blueprint is a drawing that shows how to put a house together with many different parts.

(2)Which is more complex, building a living thing or building a house?

Building a living thing is far more complex than building a house.

(3)Do some twins have the same DNA?

Yes, they do.

(4)Is it possible to change your DNA?

Yes, it is. In the future, scientists might be able to change our DNA.

(5)Whose DNA is related to yours?

People who are related to me. For example, my parents and grandparents.

DNA-The Story of YouPPT, Part 3: Main phrases:

·in general

·except for

·be related to

·billions of

Main sentences:

·What can scientists do with DNA?

·But building a living thing is far more complex than building a house.

·Except for some twins,every living thing has its own unique DNA.

·Some health problems can be caused by problems in your DNA.

·In the future, scientists might be able to change your DNA.

·There are copies of your DNA in every part of your body.

·You have your own unique DNA, but it repeats patterns from your parents’ DNA.

·Your DNA has billions of instructions that explain why you are the way you are.

·It’s one of the most amazing things on the earth!

DNA-The Story of YouPPT, Part 4: Textbook Interpretation

1.What can scientists do with DNA?

Do with is a fixed phrase, meaning "processing", emphasizing the object, and is used with the question word what.

[Expansion] deal with also means "to treat, deal with", focusing on the way and method of dealing with it, and is used with the question word how.

2.In general, a blueprint is a drawing that shows how to put a house together with many different parts.

◆In general means "generally speaking, generally speaking", usually placed at the beginning of a sentence, and can also be expressed by speaking generally.

◆Different is an adjective, meaning "different", and is often used in the following structures: be different from and... different; be different in... different in....

3.But building a living thing is far more complex than building a house.

◆Living is an adjective, meaning "alive, living" and is often used as an attributive.

◆Far is an adverb, meaning "very, far". It is used to modify the comparative form of adjectives and adverbs to express degree.

[Extension] Words with the same usage include even "even"; rather "quite"; much "...much"; a little/bit "a bit"; a lot "...much" and so on.

4.Except for some twins,every living thing has its own unique DNA.

◆Except for means "except..., but for", which requires exclusion of different categories.

【Discrimination】except for,except,besides,but

(1) Except for means "except", indicating affirmation of the subject and partial negation, and is used between different types of things.

(2) Except can be used as a preposition, which means "except..." and expresses the exclusion relationship between similar things.

(3) besides can be used as a preposition, meaning "except...", indicating the superposition relationship between similar things.

(4) But can be used as a preposition, meaning "except...", and is often used with words such as no, all, every, each, none, nobody, etc., and sometimes interchangeable with except.

DNA-The Story of YouPPT, Part 5: Practice

Ⅰ.Fill in the blanks with the phrases in the box.

in general,except for,not only…but also,related to,even if,the same…as…

1.Your homework is quite good__________a few spelling mistakes.

2.__________the young__________the old like pop music.

3.Kate’s hair is__________colour__________her sister’s.

4.__________ ,women live longer than men.

5.__________ many difficulties remain,we can overcome them.

6.Is wealth__________ happiness?

Ⅱ.Complete the passage with the sentences in the box.

Changing DNA

Do you know DNA can be changed?Have you ever seen a pig with a dog's body?Of course not!Pigs and dogs can't have babies together.________But now, scientists can do it.Scientists can take DNA from one kind of animal and put it into another kind of animal. They can design new plants by combining the DNA of other plants.________Some scientists are worried.They say we need to know more about DNA before we start changing it.________But what if the plants are bad for humans, too?

A.Their DNA can’t combine.

B.We can make plants that are bad for pests.

C.They can even combine the DNA of a plant and an animal.

DNA-The Story of YouPPT, Part 6: Homework

1.Finish off the exercises in the activity book.

2.Preview Lesson 30.

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Update Time: 2024-10-07

This template belongs to English courseware Hebei Education Edition Ninth Grade English Volume 1 industry PPT template

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