时间:2018-12-10 作者:英语课 分类:河北教育初中英语(初中起点)九年级下


英语课

[ti:UNIT 2 DNA 1 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 phrases 2 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 cloned 3 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 disease 4 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 throughout 5 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 learned 6 in the unit and write a paragraph 7 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 Conjunctions 8 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 related 9 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
  • 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
  • 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 )
  • 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
  • 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
  • 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
  • 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
  • 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
  • "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
  • 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。
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