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2022年高中英語 Unit 2 Cloning 視聽說選修課 Listening for details練習(xí) 新人教版選修8

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1、2022年高中英語 Unit 2 Cloning 視聽說選修課 Listening for details練習(xí) 新人教版選修8 — Well, now, why don't you all sit down? Uh, Donald, sit down, sit down. Ah, here. Here he ______. Well, here I e. — Hello, hello. — Say hello. Say hello. — Hello. — H- Hello. — Hello, John. — Oh, yes, I've got lines here. —

2、Well, fine, fine, I guess. But ____ did I get here? — Uh, uh, well, let me _____ you. First I'll need a _____________, your blood. — Right. — Ooh! John, that ____. — Relax, John, it's all part of the _______ of _______. — Hello, John. — Hello, John. — Hello. — Cloned from what? — Loy extr

3、action has ______ recreated an intact D.N.A. strand. — Not without massive sequence gaps. — Paleo-D.N.A. from what source? Where do you get a 100-million-year-old ________ blood? — Shhh! — What? What? Oh, well, Mr. D.N.A.! Where did you e from? — From your blood. Just one drop of your blood __

4、______ billions of strands of D.N.A., the building blocks of ____. A D.N.A. strand ____ me is a blueprint for building a living thing. And sometimes, animals that went ______ millions of years ago, like dinosaurs, left their blueprints behind for us to ____. We just had to know where to look. ____ m

5、illion years ago, there were mosquitoes, just like today. And just like today, they ______ the blood of animals, even dinosaurs. Sometimes, after ______ a dinosaur, the mosquito would _____ on the branch of a tree and get stuck in the sap (樹液). After a long time, the tree sap would get hard and ____

6、___ fossilized, just like a dinosaur bone, __________ the mosquito ______. This fossilized tree sap, which we call ______, _________ millions of years with the mosquito inside. Until Jurassic Park scientists came along. _____ sophisticated techniques, they extract the preserved blood from the mosqui

7、to, and bingo.: dino D.N.A. A full D.N.A. strand contains three ______ genetic codes. If we looked at screens like these once a second for _____ hours a day, it'd take two years to look at the ______ D.N.A. strand. It's that ____. Since it's so old, it's full of _____. Now that's where our geneticis

8、ts take over. Thinking machine super-puters and gene sequencers ___________ the strand in minutes. And virtual-reality displays show our geneticists the _____ in the D.N.A. sequence. We use the ________ D.N.A. of a frog to _____ the holes ... and plete the code. Phew! And now, we can make a _____ dinosaur. — This score is only temporary. It all has very dramatic ______, of course. Rum-pum-pum! A march or something. It hasn't been written yet. And then, of course, the tour ______ on.

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