北師大版高中英語必修五unit13peopleword導(dǎo)學(xué)案7-wenkub
2022-12-14 00:05:47 本頁面
【正文】 . Why do people put hot metal in water? ( ) A. To make it hard. B. To make it soft. C. To make it cool. D. To make it brittle. 2. In annealing, the required hardness of metal depends on __. ( ) A. the quantity of water used B. the temperature of the metal C. the softness of the metal D. the timing of the operation 3. As suggested by the text, how can glass be made less brittle? ( ) A. It can be heated and then cooled quickly. B. It can be cooled and then heated slowly. C. It can be heated and then cooled slowly. D. It can be cooled and then heated quickly. 答案為 A，此題屬推斷歸納題。文中第二句說如果把金屬加熱，然后迅速放到水里冷卻，也就會變得非常硬，但也變得脆。 答案為 D,此題屬概括歸納題。 答案為 C 此題屬推理判斷題。由此推斷 C是正確的 學(xué)后反思： ____________________________________________________ 。最后一句說退火工藝同樣可用于象玻璃一類的其他材料。本答案的依據(jù)是 5 和 6兩句， The metal is heated,…length of time.,The longer …the softer it bees.cool 的時間是可以控制的，時間越長越 soft,
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