人教新课标高中选修8Unit5单词讲解课件概要.ppt

本资料来自于资源最齐全的２１世纪教育网 Book8 Unit5 1. ______n. 可能的选择; adj. 供选择的；其他的 → ______ adv. 两者选一地 2. ______ n. 精确；准确→ ______ adj.精确的；准确的→ ______ adv.准确无误地 3. ______ vt.vi.打断……讲话；打岔;暂时中断或中止→ ______ n.中断；打扰 4. ______ vt.假定；设想→ ______ n.假设；假定 5. ______ vt.vi.（使）锋利;尖锐；清晰 → ______ adj. 刺耳的;锋利的;急剧的 n.__________锐利n.___________削刀；磨具 6. ______ adj. 足够的；充足的；富裕的 → ______ adj.(同义词) alternative alternatively accuracy accurate accurately interrupt interruption assume assumption sharpen sharp ample enough/plenty of/sufficient/abundant/adequate sharpness sharpener ripen ripe strengthen/lengthen 7. _______ n.分析→ _______ vt.分析 8. _______ n.意义；意思；重要性；重要意义 → _______ adj.有重大意义的 analysis analyze significance significant ___________ is the first thing. To get an __________number，we must measure ______________. (accurate) accurately Accuracy accurate ⑴ The bell indicating the end of the period rang，____________ (interrupt) our heated discussion. ⑵ Chinese civilization is the only one without ____________ (interrupt) in the world. interrupting interruption ⑴ You must be very careful with this_____ knife. ⑵ A workman must _________ his tools if he is to do his work well. ⑶ Who else has a pencil_______________ ? sharp sharpen sharpener 1.alternative n./adj. 1)我们别无选择只能妥协。 2)你可以选择斗争或者被俘。 3)有几种方案可以代替我们的计划。 除了做…之外别无选择 have no choice but to do have no alternative but to do have nothing to do but do “别无选择” 前有do,后无to; 前无do, 后有to 【即学即练】 完成句子 ①我担心我别无选择，只能呆在家里。 I am afraid I _____ _____ ______ ______ ______ stay at home. ②我没有别的办法，只好向警方告发了他。 I_____ ______ ______ ______ ______ report him to the police. 答案：①have no alternative but to ②had no alternative but to 2.interrupt vi./vt. interruption n. 1)城市的交通被浓雾阻断了。 2)对不起打扰一下，能不能告诉我去医院的路。 3)打断别人说话是很不礼貌的。 链接 cut in / break in 插嘴， 打断 without interruption不间断地 辨析 interrupt / disturb interrupt sb. 打断某人讲话或正在做的事。 disturb sb.打扰 / 妨碍 / 扰乱某人(使人不能平静或妨碍别人工作、思维或正常秩序)。 用interrupt / disturb的正确形式填空 (1) Dont __________ her; she is puzzling over something