牛津9B Unit 1重点词汇解析

1、牛津9B Unit 1重点词汇解析江苏 李建高1. imagine【解析】imagine既可作不及物动词，又可作及物动词，意为“想象；设想”。作及物动词，其后跟名词、代词、v-ing形式或宾语从句。如：I cant imagine life on a deserted land. 我无法想象在荒岛上的生活。I imagined you as a big tall man. 我曾想象过你是一个高大的男子。Can you imagine living without electricity? 你能想象没有电的生活吗？Just imagine what will happen in 2100. 请想

2、象一下2100年会发生什么事。【练一练】根据提示，完成句子。 You cant imagine _ when they received these nice Christmas presents. A. how they were excited B. how excited they were C. how excited were they D. they were how excited Did your teacher learn Russian in a high school? I imagine _. A. thatB. it C. soD. she was Lucy coul

3、dnt imagine _ the interviews. A. to succeed inB. succeeding in C. succeed inD. be successful 也许很难想象生活在太空是什么样的。 It may be difficult _ _ how to live in space.2. develop【解析】develop作及物动词，意为“使发展；使发达”；作不及物动词，意为“发展；发达”。Swimming develops the muscles. 游泳使肌肉发达。We decided to develop the land near the hospital.

4、 我们决定开发医院附近的土地。Many little factories developed quickly. 许多小工厂迅速发展起来。In the past 20 years, China developed at high rapid. 在过去的20年中，中国一直高速向前发展。【拓展】develop的形容词有：developing意为“发展中的”；developed意为“发达的”。develop的名词形式是development，意为“发展”。如：India is a developing country. 印度是发展中国家。Germany is a developed country.

5、德国是发达国家。With the development of computer technology, they have been in service in many ways. 随着电脑技术的发展，它们已经运用于许多方面。【练一练】根据提示，完成句子。 China is a _ country, and the USA is a _ country. A. developing; developing B. developed; developed C. developing; developed D. developed; developing 那座城市已发展成为工业中心。 The

6、citys _ _ the centre of industry.3. sure【解析】sure作形容词，意为“确定的，有把握的”。其常用搭配有：be sure of / about + 名词 / 代词等及be sure that + 句子，主语是人，表示“主语感到有把握 / 确信”；be sure to do sth.，主语是人或物，表示“说话人推测一定 / 必然会”。如：We are sure of your success. = We are sure that you will succeed. 我们确信你会成功的。I am not sure about the use of this

7、 word. 我对这个词的用法没把握。He is sure to know about that. 他准知道那件事。make sure of / make sure + that / make sure + wh- 意为“确定 / 查明”。如：You should make sure of the time. 你应该把时间弄清楚。Make sure who broke the window. 查明谁打碎了玻璃。【拓展】sure作副词，主要用于口语，意为“的确，当然”，相当于of course或certainly。如：Boy, it sure is hot. 好家伙，这天可真热。【练一练】根据提

8、示，完成句子。 Ann is so careful that she always goes over her exercises to _ that there are no mistakes. A. look forB. make sure C. find outD. think about 他不久一定会回来。 He is _ _ _ back soon. 你有把握在比赛中获胜吗？ _ you _ _ winning the game?4. different / various【辨析】两者均有“不同的”意思。它们的区别是：different意为“不同的”，“有差异的”，普通用词，后接单复

9、数名词均可。“与不同”应说(be) different from。如：Things today are greatly different from what they used to be. 今天的情况与过去大不相同。Their tastes are quite different from mine. 他们的品味和我的完全不同。various指同一范畴或范围内的不同种类或类别数量，强调多样性，后面只接复数名词。有时可与different通用。如：Tents come in various shapes and sizes. 帐篷有各种各样的形状和尺寸。There are various w

10、ays of doing this. 做这一工作的方法有很多。There are various / different kinds of these things. 这些东西品种繁多。【练一练】用different或various填空。 He refused to do that for _ reasons. They are boys of _ ages.5. population【辨析】population是个集合名词，意为“人口，人口数”，在句中作主语时，谓语动词多用单数。对人口提问时，要用what或者how large，而不用how many或how much。population常

11、和不定冠词a连用，构成词组has (got) a population of “拥有人口”和with a population of “拥有人口的”。表示人口的“多”和“少”时，要用large (或big)和small来修饰，而不能用many, much, few和little等词。如：Its said that the population of India is already over 1.1 billion. 据说，印度人口已超过11亿。How large is the population of the world? 世界有多少人口？China has a population of

12、 about 13 billion. 中国大约有13亿人口。The United States is a country with a population of about 0.3 billion. 美国是一个拥有大约3亿人口的国家。India is also a country that has a large population. 印度也是一个人口众多的国家。【练一练】根据汉语提示，完成句子。 中国是世界上人口最多的国家。 China is the country with _ _ _ in the world. 这个城市的人口增长了5%。 _ _ _ the city increas

13、ed by 5 percent. 印度人口很多。 India has _ _ _. 这个城镇有4万人口。 This town has _ _ _ forty thousand.6. certain【解析】certain作形容词，意为“确信的，无疑的，肯定的”，通常用作表语。其后接不定式时，表示说话人的看法，意为“一定会，肯定会”；后接“of / about + 名词 / 动名词”或后接“that / whether从句等”，表示句子主语的信念，意为“确信，自信”。for certain表示“肯定地，确切地”，make certain意为“弄清楚，弄得有把握”。如：Hes certain to

14、succeed. = Its certain that he will succeed. 他一定会成功。He is certain of success (winning). / He is certain that he can succeed (win). 他确信会成功(赢)。I cant say for certain where he lives. 我不敢肯定地他住在什么地方。They made certain (that) they werent late. 他们有把握不迟到。Arrive early at the cinema to make certain of getting

15、a seat. 早点去电影院以便能弄个座位。【练一练】单项选择。 We have made enough preparation. We are certain _. A. to succeedB. of succeed C. of succeedingD. for succeed _ certain that his discovery will lead to the development of science. A. It hasB. That is C. This isD. It is Its almost _ that he will lose the next election(选举). A. certainB.