2017届高考英语一轮复习课件： Unit 4（新人教版必修2）_高考复习指南

2017届高考英语一轮复习课件： Unit 4（新人教版必修2）

　　We should pay attention to the problem of the protection of wildlife, because at present they are dying out or in danger. On one hand, people hunt animals for food or for the thick furs. On the other hand, people can not get along well with wildlife which they think are fierce and attack them to death, which will endanger the wildlife.

　　In order to protect the wildlife from extinction, it is necessary to set up wildlife reserves. As long as the above measures are effective, the species will develop gradually and safely. 自主学习 1.As a result these endangered animals may even die out. (P25) 结果，这些濒危动物可能会灭绝。 ◆词语拓展 die out灭绝、(习俗等)消失 die away(风、声音等)渐渐消失、逐渐减弱 die down渐渐熄灭；静下来 die off相继死去；成批死亡 die of死于疾病、饥寒、情感 die from死于疾病、饥渴情感以外的原因 be dying for sth.渴望拥有 be dying to do sth.渴望做某事 ◆即学即练 A.选用上述短语填空。 (1)As the region is becoming hotter, this kind of grass is _____________. (2)Their chatters and laughter _____________ as the group rushed out of the classroom. (3)When all the guests had left, the whole house _____________. (4)We need to take action before all the endangered animals _____________. 答案：(1)dying off

　　(2)died away(3)died down

　　(4)have died out as a result; as a result of; because; because of; result in; result from （1）as a/the result 常用在有上文（表示原因）的情况下，独立于句子之外。 It was raining hard. As a result, we had to put off the basketball match. （2）as a result of 由于……，后接名词或短语 As a/the result of the heavy rain, we had to put off the basketball match. （3）because后接原因状语从句 Because he was ill, he didn，t attend the party. ◆词语辨析 （4）because of 后接名词或短语 He didn，t attend the party because of his illness. （5）result in导致 Your carelessness resulted in the serious accident. （6）result from由于……