Unit 4 重点单词短语课件-2023届高三英语一轮复习人教新课标必修二

Unit 4 Wildlife protection thr/e_t/_n vt. 恐吓；威胁 d_/cre_se vt./ vi 减少 1．decrease (1)vi. & vt. 减少；(使)变小或变少 increase v. 增加；增长 Student numbers have decreased by 74. Student numbers have decreased to 74. decrease by 减少了(幅度） decrease to 减少到(结果，总额） This species of bird is decreasing/on the decrease. There is a decrease in the annual birthrate. (2)n. [C，U] 减少；降低 on the decrease 正在减少中 a decrease in… 在…方面减少 The number of students in each class is ________ the decrease. It's reported that the population of that country has increased ________ more than 1.3 billion and ________0.5% every year in the past ten years. 2.die out (1) 灭绝 Dinosaurs have died out. (2)(风俗、习惯、观念等) 逐渐消失 Many old customs are dying out. (3)(火) 熄灭 The fire died out in the end. die of 因……而死 (一般指死于内因，如疾病、饥饿、情感原因等) die from 因……而死 (一般指死于外因，如外伤、车祸、污染等) die away (声音、风、光等)慢慢变弱；渐渐消失 die down (兴奋、火等)渐弱；渐息；平息 die off (家庭、种族等)相继死亡；(草木)先后枯死 The excitement died ________ as time went by. The sound of the music died ________. The young driver died ________ the wounds caused by a road accident. She died ________ a fever, and no one could save her. The trees have been dying ________ during the cold winter, and there are few left. If some rare animals are killed, they will die ________. 3．loss n. [U，C]损失；遗失；丧失 He told the police about the loss of his car. I'm at a loss what to do next. at a loss 不知所措；困惑 lose v. 丢失 (lost, lost) r_/s_rve n. 保护区 4 hunt vt. & vi. 打猎,搜寻 hunter n．猎人 go hunting 去打猎 hunt for sth 猎取；寻找 look for；search for hunt after sth =go after sth 追猎某动物；追逐sth ①他们现在在书店里寻找一些有趣的书。 They ________some interesting books in the bookstore now. ②He ____________________his notebook. 他搜遍房间的角角落落找他的笔记本。 ③He devoted his life ________________. 他穷其一生追逐梦想。 z_ne n. 地区，地带 5．(be) in danger (of)在危险中；垂危 ①Her life was in danger. ②He is in danger of losing his job. out of danger 脱离险境 a danger to 对……来说是危险的人或物 dangerous adj. 危险的 endanger v. 危害；使受到危险 endangered adj. 有危险的；濒临灭绝的 in danger 指人或物本身处于危险