2020-2021学年Unit 5 Look into ScienceLesson 29 DNA—The Story of You授课ppt课件

这是一份2020-2021学年Unit 5 Look into ScienceLesson 29 DNA—The Story of You授课ppt课件，共22页。PPT课件主要包含了New Words，blueprint，Except，Exercises等内容，欢迎下载使用。

I. Learning aims:
The new wrds: DNA, blueprint, general, cmplex, twin, repeat, pattern, identify, related, grandsn, granddaughter, instructin
II. Train the speaking and writing abilities.
DNA blueprint general cmplex twin repeat pattern identify related grandsn granddaughter instructin
D yu and the students near yu lk the same? What is the same?
Zhang Liangying lks like her mther.
Identical twins are tw children that grew frm the same egg. They have identical DNA. They’re clnes!
D yu and the students near yu lk the same? What is the same? Are there any differences between yu and them? What can scientists d with “DNA”?
Listening Task
Generally speaking, a ________ is a drawing.______ fr identical twins, each living thing has its wn unique DNA.
Where des yur DNA cme frm? Parents. Is yur DNA in every part f yur bdy? Yes, it is.
Reading Task
D yu and the students near yu lk the same? Are there differences between yu and them?What can scientists d with “DNA”?
Listen and Think
1. But building a living thing is far mre cmplex than building a huse.
比较级前可以用much, even, still, far, a bit, a little, a lt 等词加以修饰。
This unit is much easier than that ne. 这个单元比那个单元容易得多。
2. wn 的用法 1）adj. 自己的 （用在所有格后，加强语气） Nw ask the same questins abut yur wn teachers. She makes all her wn clthes. 2) vt. 有，拥有 Wh wns the bike?
3. except fr 除……以外，只是 He is a gd man except fr ht temper. Yur article is quite gd except fr several spelling mistakes.
4. nt nly ... but als ... 不但……而且……连接两个相同的成分，也可以连接两个分句。当接两个主语时，谓语动词和后面主语保持一致。 e.g. He likes nt nly English but als math. Nt nly yu but als I am a teacher. 5. relate t 涉及；有关 e.g. The stry related t the Secnd Wrld War. I have a bk relating t the Autumn Harvest Uprising.
Students discuss these with their partners, then say ut in class.
1. Everyne wrte a gd pem _______ her. (除了) 2. _________ Tm, five ther bys als passed the exam. (除了……还有)3. ____________ identical twins, each living thing has its wn unique DNA. (除……之外)
4. All the questins are easy _______ the last ne. (除了)5. There are many thers _________ me.(除了……还有) 6. We all went t Beijing ________ Tm, wh has been there befre. (除了)
1. I can _______ swim _________ skate.(不但……而且……) 2. 它不仅能说汉语而且还会说英语。He can speak ____________________________.3. Nt nly yu but als I ____ (be) a teacher.4. Nt nly I but als he _____ (knw) the answer t the questin.
nt nly Chinese but als English
nt nly but als
5. Neither they nr I ______ gd at singing. A. are B. be C. is D. am 6. Bth my father and I ______ in the cuntry. A. enjys living B. enjy t live C. enjys t live D. enjy living
1. Write a passage abut DNA, try t tell what it is, where it is frm, what things yu shw yur parents’ DNA?2. Preview Lessn 30.