高一英语必修一unit4单词知识讲解

• Eg: I was ruined by that news.
• 拓展： bring sth to ruin 使某物毁灭
bring sb to ruin 使某人破产
9. extreme • （1）adj. 极度（大）的；严重的；
blood + -y = bloody 流血的 rain + -y = rainy 下雨的 cloud + -y = cloudy多云的 wind + -y = windy 多风的 snow + -y = snowy下雪的 greed + -y = greedy贪婪的 dream+-y = dreamy 幻想的 taste+ -y = tasty 美味的 ice + -y = icy冷漠的，冰的 fat + -y = fatty 肥胖的 mud+ -y = muddy泥泞的 fog + -y = foggy 有雾的 sun + -y = sunny阳光灿烂的
• 2[C]（体育比赛等的）项目，赛事
• Eg: The Olympic Games are important events in the sports world.
7.as if 似乎, 好像 = as though
Eg:She spoke to me as if she knew me. • as if后还可跟名词、形容词、不定式等 • He acts as if (he was) a fool. wenku.baidu.com She left the room hurriedly as if
Unit4 Earthquakes
• 1.earthquake n. 地震 • earth n. 地球 quake vt. 震动，
地震
• Eg: It is reported that an earthquake broke out last night in Southeast Asia.
3. well • ① n. 井 • Eg: A book is a well of knowledge. • ② adj. 健康的 • Eg: I hope you will get well soon. • ③ adv. 熟练地，有效地 • Eg: He plays the piano very well
eg: 到上个月末为止，他在那条船上已经待了两年。 By the end of last month, he had been on that ship for two years. 到下学期末为止，我将学会3000多个英语单词。 I will have learned more than 3000 English words by the end of next term.
for his age.
4. smelly adj. 有臭味的，发臭的
• Eg: His socks are smelly. • 词根：smell 可用作系动词或实义
动词，用作系动词时，意为“闻起 来”；用作实义动词时意为“闻”
• Eg: You may smell the mixture and it smells terrible.
5. burst • ①v.（使）爆裂；（使）破裂；（使）爆炸 • Eg: The balloon suddenly burst. • ②v.猛冲；突然出现 • Eg: He burst into the room without knocking. • burst into+ n.=burst out doing sth. 突然……起来
1). at an end: 表示“终结，结束”，与be动词连 用。
eg:The war was at an end.= The war came to an end.
2). in the end: 表示“最终，终于”，单独使用 作状语。
eg: They gave up the plan in the end. (at last)
(she was) angry. • as if 在表语从句中相当于that: • It seemed as if the meeting would
never end.
• It seemed as if the world was at an end!= It seemed that the world was at an end!
eg: 她突然笑起来。
She burst out laughing. = She burst intolaughte.r 他突然大哭起来。
He burst out crying. = He burst into tears.
6. event n. • 1 [C]（尤指涉及几个人的）事件，
大事
• Eg: That was an important historical event.
8. ruin n. [U] 毁坏；毁灭；灭亡
•
n. 倒塌的建筑物，废墟
• Eg: The castle now is in ruins.
• 注意：ruin表示“废墟，遗迹”，常用复数， 常构成in ruins，意为“严重受损，破败不 堪”，强调状态，常用作表语或状语。
• （3）v. （完全地）毁坏，毁掉；使破产
8. at an end 结束，终结 eg: 炎热的天气终于结束了。
The hot days are at last at an end. The hot days come to an end at last. be at an end = come to an end 结束
辨析：at an end, in the end, at the end of, by the end of
3). at the end of: 表示“在…的尽头/末尾”
eg: My father will come home at the end of this year.
4). by the end of: 到…末为止，常与完成时态连用。 by the end of last…用于过去完成时 by the end of next…用于将来完成时