Unit 20 New Frontiers

　　一、课前基础自查

　　(一)分类记单词--省时高效

Ⅰ.阅读单词(知其意)

1．algebra n．　　　　代数

2．geometry n. 几何

3．bacteria n. 细菌

4．radiation n. 辐射；放射

5．radioactive adj. 放射性的

6．recreation n. 娱乐；消遣

7．futurologist n. 未来学家

8．seminar n. 研讨会；研讨班

9．enterprise n. 事业；企业

10．stainless adj. 无污迹的

11．stain n. 污点，污迹

12．discrimination n. 歧视；识别力

13．database n. 数据库；资料库

14．digital adj. 数字式的

15．category n. 类别；类型

16．autonomous adj. 自治的；自主的

17．programmer n. 电脑程序编制员

18．disconnect v. 使不连接；切断

19．operational adj. 工作着的，即可使用的

20．premier adj. 最重要的 21.patent n．　　　　 专利

22．ancestor n. 祖先；祖宗

23．primitive adj. 原始的

Ⅱ.重点单词(写其形)

1．emotional adj. 情感(上)的

2．journal n. 杂志

3．latter n. 后者

4．handy adj. 方便使用的

5．shortly adv. 不久；很快

6．conflict n. 争执；冲突

7．rescue vt. 拯救，救援

8．original adj. 起初的；最早的

9．correspond vi. 通信；符合

10．meanwhile adv. 同时

11．outspoken adj. 直言的，坦率的

12．outcome n. 后果，结果

13．cure vt. 治愈

14．phenomenon n. (pl.phenomena) 现象

15．procedure n. 程序；步骤

16．source n. 来源；出处 Ⅲ.拓展单词(通其变)

1．technical adj.技术上的→technique n．技术→technology n．工艺，技术

2．starvation n．饥饿→starve v．挨饿

3．equality n．平等→equal adj.平等的v.等于→equally adv.平等地

4．assess vt.评价；评估→assessment n．评价；评估

5．donate vt.捐赠；赠送→donation n．捐赠；赠送→donor n．捐赠者

6．electronic adj.电子的→electric adj.电的；电动的→electrical adj.电的；电气科学的

7．specialist n．专家→special adj.专门的；特殊的

8．poison n．毒药；毒物→poisonous adj.有毒的

9．permit vt.允许；准许；许可→permission n．允许；准许

10．declare vt.宣告；宣布→declaration n．宣布

11．exploration n．探测；探险→explore vt.探测，探险

12．assist vt.帮助；协助→assistance n．帮助；协助→assistant n．助手；助理

13．participant n．参加者→participate v．参与，参加→participation n．参加，加入 [语境活用]

1．She declared that she would rather change her mind and many citizens were strongly against her declaration.(declare)

2．All men are born equal,_so everyone hopes to be treated equally because equality is the basic demand.(equal)

3．We are trying to assess how well the system works and the assessment will be subscribed to the committee.(assess)

4．With the development of technology,_ this kind of technique is quite popular, for there are many technical training centers of this kind.(technology)

5．You are not permitted to leave here without his permission.(permit)

6．I have a teaching assistant who is a new graduate. He always assists me to adjust hearing equipment. He also comes to my assistance when I have trouble with my computer.(assist)

7．Bill Gates has donated a large sum of money to society.And he is highly respected for his donation.(donate)

8．Many scientists are making great efforts to explore the Moon and other planets.Their exploration may change our future.(explore)