高二英语下知识点总复习教案

　　(3) tell + n. (人) + of (about) He told me of (about) his worries.他告诉我他的烦恼。

　　▲ 拓展：

　　tell + n. + from + n. 辨别......和...... all told总共

　　Don't tell me! 不至于吧! I (can) tell you. 的确，真的

　　There is no telling. 不得而知；很难说。

　　to tell the truth 老实说

　　① It's sometimes hard to tell one twin from the other. 双胞胎有时很难分辨。② All told, there were 350 people killed in the plane crash. 那次坠机事件中总共有350人丧生。③Don't tell me you are going back to your hometown.你不至于要回到你的故乡吧。④It's a wonderful invention, I (can) tell you. 那的确是个了不起的发明。⑤ There is no telling where he is. 无法知道他到底在哪里。

　　5. Work with your partner and see whether you can come up with a good, scary story... 跟你的同伴一同看看是否能想出一个好的，引起惊慌的故事... (p.18 Listening Part 2 No. 4) come up with的用法

　　▲come up with在本单元中作"提出""想出"解。如： ① The young engineer came up with a new design. 那个年轻工程师提出一种新的设计方案。②The magazine recently came up with some advice on smoking.该杂志最近就吸烟问题提出一些忠告。③ You've come up with a good idea. 你想出的主意好极了。④ Scientists will have to come up with new methods of increasing the world's food supply. 科学家们必须找出增加全世界食品供应的新方法。

　　▲ come up with有"拿出..." "筹措钱"之意。如：① If Waths can come up with $15 million, we'll go to London. 如果瓦茨能够拿出一千五百万美元，我们就去伦敦。② You have no choice but t0 come up with ￡18, 000.你别无选择，必须拿出一万八千英镑。

　　▲ come up with亦可作"赶上"解。如：① Let's hurry up so that we may come up with them. 咱们快些走，以便赶上他们。② We shall have to work hard so as to come up with the other firm. 我们得努力工作才能赶上另一家商行。

　　6. Who benefits from using water in this way.以这种方法用水谁受益了? (p. 18 Speaking 第5 点)

　　▲ benefit的用法

　　(1) n. 利益；益处 I get a lot of benefit from learning a foreign language. 从学习外语中我得到许多益处。

　　▲ 注意：以下两个短语：be of benefit to对......有裨益；for the benefit of为了......(的利益)。① That experience was of great benefit to me. 那个经验对我很有益处。②We must make efforts to take exercise for the benefit of our health. 为了健康我们必须努力锻炼身体。

　　(2) vi. 有益于① Such foolish behaviour will not benefit your ease. 这样愚蠢的行为将无益于你的案子。② I benefited enormously from my father's advice. 我从父亲的忠告中获益良多。

　　【注】benefit可作为及物动词用，意为"有益于"。如：①The trade agreement will greatly benefit the developing countries.贸易会谈将大大的有益于发展中国家。②The new railway will benefit the district. 这条新铁路将会给这个地区带来好处。③ The long rest benefited her. 长期休息对她有好处。

　　▲ benefit from／by的用法: benefit from／by意为"从......中得益""得益于......"。如：① We can all benefit from his knowledge. 我们均可得益于他的知识。② You benefit from what he told you in the letter. 你会从他的信中受益。

　　Section II 阅读

　　7. 99% percent of the living space on earth is in the oceans. 地球上百分之九十九的生存空间是在海洋里。(p.19 第一段 第2－3行)

　　▲百分数作主语时，即percent后有数词时，应注意两点：一是percent不能用复数形式；二是谓语动词的单复数。如果percent of后的名词为单数，谓语动词用单数；其后的名词为复数，谓语动词则用复数。如：① About 70 percent of the surface of the earth is water.地球表面大约百分之七十是水。② Eight percent of the students are absent today.今天有百分之八的学生缺席。

　　【注】percent可作为副词用，在句中作状语。如：①I notice you don't say that you're a hundred percent convinced yourself. 我注意到你没有让你自己完全信服。 ② Prices have risen 5. 5 percent in the past year. 过去一年物价上涨了5.5%。③ I think it's ninety percent probable. 我想有百分之九十的可能性。

　　【注】percent也可作形容词用，在句中充当定语。如： I paid him six percent interest.我付给他百分之六的利息。

　　【注】percentage意为"百分比"，多与of连用。如果连用的名词是复数，后面的动词就用复数形式，否则用单数形式。如：① What percentage of babies die of this disease every year? 每年婴儿死于这种疾病的百分率是多少? ② What percentage 0f his income is paid in income tax? 他的收入有多大比例用来交所得税?

　　8. Marine life is incredibly rich and varied. 海洋生物极其丰富多样。(p.19 第一段 第3行)

　　▲varied是由动词vary变化而来的过去分词，在句中作定语或表语。如：① The menu is varied and cheap.菜单上的菜花样很多也很便宜。② They made varied efforts to bring about a peaceful solution of the problems. 他们做了种种努力来和平解决这些问题。③ They are rich in content and varied in style.它们内容丰富、风格多样。④ He had had varied training and had held many offices.他受过多种训练并担任过多种职务。

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