人教版高中英语必修三unit4astronomythescienceofthestarsppt考点自主学习课件

人教版高中英语必修三unit4astronomythescienceofthestarsppt考点自主学习课件内容摘要：

of (1) (energy) dust. Then the dust bined (2) a ball moving around the sun. After that， it exploded loudly with fire and rock， (3) (produce) water vapour， carbon dioxide and other gases， (4) in the end made the earth， s atmosphere. Then the earth (5) down， and water， one of the earth， s special (6) ， appeared and stayed on the earth， which made (7) possible for life to begin (8) (develop). Some small plants (9) (grow) in the water appeared on the earth， s surface， (10) (follow) by land animals, (11) insects， amphibians， reptiles and the (12) important animals called dinosaurs until finally dinosaurs disappeared (13) of a sudden and some small clever animals with hands and feet appeared and spread all (14) the earth and in place of dinosaurs they became (15) most important animals on the pla—that is， human beings. 答案： Ⅶ .考点活用 火星上有生命吗。 不知道。 我们能登陆火星吗。 这完全取决于科学技术的发展。 人类对火星有了一些了解：火星上没有氧气，火星上中午的温度可能在 50度左右 ,而晚上则在零下 100度左右了。 这样我们就不能在那里生活。 既然火星与地球完全不同，如果我们计划有朝一日去火星的话，我们就要带上氧气，食品，衣服和住的地方（ shelter）。 但可以肯定，人类迟早会登陆火星的。 ____________________________________________________________________________________________________________________________________________________________________________________________ 答案： Is there life on Mars。 We don， t know. Can we land on Mars。 It all depends on the development of science and technology. Man has known a little about Mars. There is almost no oxygen on Mars. It might be about 50 degrees above zero at noon and 100 degrees below zero at night，which prevents us from living there. Now that Mars are quite different from our earth， if we are to go to Mars one day，we should have to take along our own oxygen， food，clothing and shelter. But it is certain that man will land on Mars in time. 自主学习 exploded loudly with fire and rock.(P25) 地球猛烈爆炸起火，并喷涌出岩石。 ◆词语辨析 loud； loudly； aloud （ 1） loud可用作形容词、副词，表“大声地”，与 sing，speak， talk， cry， laugh连用。 （ 2） loudly 副词，大声地，暗含“喧闹地”意思，与explode， shout连用。 （ 3） aloud 副词。 意为“出声地”，与 read， think连用。 如： read aloud(朗读 )， think aloud(自言自语 ) ◆ 即学即练 用 loud； loudly； aloud填空。 （ 1） Sing _____________， please. （ 2） The bomb exploded _____________ near the hotel. （ 3） The kids playing on the playground often laugh ____________ and long. 答案： （ 1） louder (2)loudly (3)loud multiplied and filled the oceans and seas with oxygen， which encouraged the later development of early shellfish and all sorts of fish.(P26) 他们繁殖起来就使得早期的海洋充满了氧气，这为早期的贝类及其各种鱼类的发育进一步创造了条件。 ◆词语归纳 encourage do ，怂恿某人做 urge do ，怂恿某人做 urge doing ，怂恿。