选修8unit5语言点讲述.ppt

Unit 5 Meeting your ancestors Can you think of the alternatives we would use today? 翻译：___________________________________ 你能·想到我们今天可供利用的想法吗？ alternative ① adj.供选择的；其他的 e.g. The way was blocked ,so we had to go by alternative road. 此路不通，我们不得不走其他的路。 ② n. [C] 二选其一；可供选择的东西；替代物 1）an alternative to ...…的替代品 2）have no alternative but to do sth.别无选择只好做…… 3）There is no alternative but to do...别无选择 have no choice but to do sth. = have nothing to do but do… 拓展： 除了放弃那个计划，我别无选择。 I have no alternative but to give up the plan. = I have no choice but to give up the plan. = I have nothing to do but give up the plan. 1)We have ___________________________________.除了继续下去，我们没有选择的余地。2)There is ______________________________.除了战斗，没有其他的办法。 no alternative but to go on no alternative but to fight 辨析：alternative, choice 与 selection alternative 一般强调在只有两种可能性或者行为方式之间所做的选择。 choice 泛指从一组人或物中进行的自由选择，指选择、挑选、抉择。 ① You have an__________ : Leave with your money, or stay to help me . ② The store offers a wide ________of fruits and vegetables. alternative choice 2. I’m sorry to interrupt you but how could they live here? interrupt vt./vi. 打断…讲话；暂时中断或中止 interrupt sb./sth.(with sth) (因某事）打断某人、某事 (1)Don’t_____________ me while I’m busy.我正忙着，不要打搅我。(2)Traffic in the city __________________ a snowstorm.市内交通被暴风雪所阻断。(3)I’m sorry to ____________ you, but could you tell me the way to the hospital?对不起，打扰了，你能告诉我去医院怎么走吗？ interrupt　 was interrupted by interrupt 辨析：interrupt与disturb interrupt 强调“打断，使……不能继续”。 disturb 强调“打扰，打搅”，有“使……心烦，使……不安”之意。 [活学活用]　对比填空 (1)He is sleeping. Do not ________ him. (2)Its impolite to ________ others. disturb interrupt 拓展： Interruption n.中断，打断 without interruption 不间断地 3. So we think it is reasonable to assume they lived in these caves, regardless of the cold.co 本句的主句是we think, 从句是省略了that的_______ 从句，从句中的it为_________, 真正的主语是_____________________.从句中they lived in these caves是省略了引导词that的宾语从句，作动词_______ 的宾语。 宾语 形式主语 to assume…cold assume assume vt. 假定，设想；承担