人教新课标高中英语必修三Unit4Astronomy.ppt

make watch wonder be cool multiply begin exist explode Where do we come from? How did the universe __________ ? When we _______ the stars through the telescope, we _________ why the universe ________ . After the “Big Bang” ,the earth ______ just a cloud of energetic dust. Somehow it _________ loudly with fire and rock, which ______ the earth’s atmosphere. As the earth _______ down water _______ to appear on its surface, which was important for the beginning of life. Then living things __________ on the earth. begin watch wonder exists was exploded made cooled began multiplied On the moon The change of gravity In space Very strong Very heavy Disappeared Floated weightlessly Very light The mass will be less Leave the earth Last month I visited the moon with my friend. Before we left, I was told the force of g_____ would change three times on our journey. Then we took off. As we left the earth, I became very h_______. Gradually the weight l_______. When I was in space, it d__________. We f_______ weightlessly in the cabin and I c_____ ___. When I was on the moon, I was surprised to find out even walking needs lots of practice n__ ____ gravity changed. The returning of the earth was very f_________. We were amazed to watch fire b____ ____ on the outside of the ship. gravity heavy lessened disappeared floated cheered up now that frightening break out 疑难语句细解 1． be＋adj.＋enough＋to do足够……能干…… 拓展 enough作副词时可以修饰形容词、副词或动词，放在被 修饰的形容词、副词或动词之后，再加动词不定式或介词for 短语构成句型：be＋adj.＋enough＋to do sth./for sth.意思为 “足够……可以……”。 (1)她已到自己作决定的年龄了。 She is ____________________ decide for herself. (2)屋子不够大容不下做礼拜的人们。 The room isn’t ____________________ hold the people who attend church. (3)这篇课文太耐读了。 This text is . (4)这种游戏我训练得不够。 I hadn’t . old enough to big enough to long enough for reading trained enough for the game I found I was carried twice as far