UNIT 2 DNA Lesson 16 Unit Review

[ti:UNIT 2 DNA¹ Lesson 16 Unit Review]
[0:01.176]UNIT 2 第二单元
[0:02.885]DNA
[0:05.472]Lesson 16: 第16课：
[0:07.626]Unit Review 单元复习
[0:09.619]I.
[0:10.436]Building Your Vocabulary 构建你的词汇
[0:12.825]A.
[0:13.790]Complete the sentences with the proper forms of the given words.
[0:18.445]B.
[0:19.299]Complete the sentences with proper words using the first letters given as your guide.
[0:25.303]C.
[0:26.454]Choose proper phrases² to complete the sentences.
[0:30.663]neither ... nor ... 两者都不
[0:32.817]except for 除……以外
[0:34.785]what if 如果……的话会怎样
[0:36.406]not only ... but also 不仅……而且
[0:39.712]at the same time 同时
[0:41.487]D.
[0:42.789]Complete the passage with proper words or phrases.
[0:46.745]II.
[0:47.641]Grammar in Use
[0:49.593]Fill in the blanks with proper words.
[0:52.806]III.
[0:53.916]Speaking the Language
[0:56.127]Complete the following dialogue.
[0:59.005]IV.
[0:59.827]Putting It All Together
[1:01.683]A.
[1:02.653]Fill in each blank with a proper word.
[1:06.328]Dolly the sheep was the first cloned³ animal in the world. 绵羊多利是世界上第一只克隆动物。
[1:10.982]She was born in 1996 and died from lung disease⁴ in 2003. 她出生于1996年，于2003年死于肺病。
[1:17.941]B.
[1:19.265]Play "Stop-Go"
[1:21.715]Start the game with 10 volunteers from the class.
[1:26.779]When the teacher says "Go,"
[1:29.393]the volunteers walk quickly throughout⁵ the classroom, looking down at the floor.
[1:36.597]When the teacher says "Stop,"
[1:38.975]the ten students stop, look up and pair up with the students sitting closest to them.
[1:47.290]First, the partners in each new pair shake hands and greet each other.
[1:53.554]Then, they tell each other something they can or can't do,
[1:59.057]using the "Ability and Inability" expressions on this page.
[2:04.916]When the teacher says "Go" again,
[2:07.901]the 10 volunteers sit down in their partners' seats.
[2:13.232]The 10 new students start to walk quickly throughout the classroom,
[2:18.931]looking down at the floor until the teacher says "Stop" again.
[2:24.028]C.
[2:25.074]Written work
[2:26.769]If you want to study in a school in England,
[2:30.620]you have to send your own self-introduction to that school.
[2:35.517]Use what you have learned⁶ in the unit and write a paragraph⁷ about your abilities.
[2:41.895]Do you Know? 你知道吗？
[2:43.509]Ability and Inability 能力和不能
[2:46.672]He can ride a bike. 他会骑自行车。
[2:49.223]He's able to pass the math exam. 他能通过数学考试。
[2:53.261]Brian is good at football. 布莱恩擅长踢足球。
[2:56.660]Scientists can take DNA from one kind of animal 科学家可以从一种动物上提取DNA，
[3:01.924]and put it into another kind of animal. 并把它放进另一种动物的体内。
[3:05.899]They can't combine their DNA. 他们不能合成他们的DNA。
[3:09.631]How far can you jump? 你能跳多远？
[3:12.695]Can I take a plane to the bakery? 我可以把飞机带到面包房去吗？
[3:16.391]Coordinating Conjunctions⁸ 并列连词
[3:19.447]Bacteria are neither plants nor animals. 细菌既不是植物，也不是动物。
[3:24.143]From your DNA, 从你的DN中，
[3:25.991]scientists can identify not only you but also people related⁹ to you. 科学家不仅可以识别你，还可以识别与你相关的人。
[3:33.490]What would you name your new animal or plant? 你给你的新动物或植物起的什么名字？
[3:38.271]She didn't ask for both a size and a feeling. 她不是说表示尺码和感觉的两个词都要。
[3:42.904]Now I need either a size or a feeling. 现在我需要一个表示尺码或感觉的词。
[3:42.904]
[3:42.904]
[3:42.904]

1 DNA   

(缩)deoxyribonucleic acid 脱氧核糖核酸

参考例句：

• DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
• Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。

2 phrases   

n.短语( phrase的名词复数 )；成语；说法；乐句

参考例句：

• Sports commentators repeat the same phrases ad nauseam. 体育解说员翻来覆去说着同样的词语，真叫人腻烦。
• Television sports commentators repeat the same phrases ad nauseam. 电视体育解说员说来说去就是那么几句话，令人厌烦。 来自《简明英汉词典》

3 cloned   

v.（使某物）无性繁殖( clone的过去式和过去分词 )

参考例句：

• Even so, on experimenter can predict which of the remaining fragments will be cloned. 即使如此，任何实验工作者仍不能预料剩下的片段中哪个将无性繁殖。 来自辞典例句
• Recently, some English scientists announced that they produced a cloned sheep. 最近，英国一些科学家宣布他们造出了一只克隆羊。 来自互联网

4 disease   

n.疾病，弊端

参考例句：

• The doctors are trying to stamp out the disease.医生正在尽力消灭这种疾病。
• He fought against the disease for a long time.他同疾病做了长时间的斗争。

5 throughout   

adv.到处，自始至终；prep.遍及，贯穿

参考例句：

• These magazines are sold at bookstores throughout the country.这些杂志在全国各地书店均有发售。
• Guilin is known throughout the world for its scenery.桂林以山水著称于世。

6 learned   

adj.有学问的，博学的；learn的过去式和过去分词

参考例句：

• He went into a rage when he learned about it.他听到这事后勃然大怒。
• In this little village,he passed for a learned man.在这个小村子里，他被视为有学问的人。

7 paragraph   

n.段落，短评；vt.将…分段，分段落；vi.写短评

参考例句：

• Each paragraph begins on a new line.每段都另起一行。
• There's a paragraph on the matter in the paper.报纸对这件事有一短篇报道。

8 conjunctions   

n.连词( conjunction的名词复数 )；结合；联合；（恒星、行星等的）合

参考例句：

• "And", "but"and"whereas" are conjunctions. and，but和whereas是连词。 来自《简明英汉词典》
• Prepositions and conjunctions are particles. 介词和连词是小品词。 来自《简明英汉词典》

9 related   

adj.有关系的，有关联的，叙述的，讲述的

参考例句：

• I am not related to him in any way.我和他无任何关系。
• We spent days going through all related reference material.我们花了好多天功夫查阅所有有关的参考资料。