高三复习选修8 Unit 5 Meeting your ancestors .ppt

目录 选修 八 Unit 5 Meeting your ancestors If only it could be just like last year! 要是能跟去年那样有多好呀！ [句法分析] 本句是if only引导的一个虚拟语气从句。 (1)if only...could/would＋do...表示对将来事情的愿望(不用should) (2)if only...did...表示对与目前或现在事实相反的愿望 (3)if only...had done...表示对与过去事实相反的愿望 1)I failed again. If only ________________review my lessons. 我又失败了。要是我有时间复习功课就好了。 2)If only you with greater care! 你工作要是再仔细一些该多好啊！ 3)If only the whole family ______________ during the Spring Festival！ 今年春节全家能团圆就好了！ I had had time to worked could be united ? had if only, only if if only 用来表达愿望,意为“但愿……,要是……就好了”,句中谓语动词要用虚拟语气(与现在事实相反用一般过去时,与过去事实相反用过去完成时)。 only if 由副词only和从属连词if组合而成,only仅起强调作用,意为“只要”。从句在句首时,主句要倒装。 1.alternative　 adj.供选择的;其他的　 n．可能的选择;选择对象 归纳拓展 (1) an alternative to ……的替代品 have no alternative but to do sth.别无选择只好做…… There is no alternative... ...别无选择 (2) alternative energy 替代能源;新能源 alternative fuel 代用燃料;可替代燃料 alternative method 替代的方法 1)The manager said that they__________________ _____ if the plan they had submitted was not accepted. 经理说如果他们递交的计划不被接受,他们还有另外一个计划。 2)I had no alternative/choice but report him to the police. 除了向警察举报他,我别无选择。 3)We_________________________________ of fuel such as charcoal. (recommend) 我们建议使用替代燃料,比如木炭。 had an alternative plan recommend using alternative sources ? to 2. assume　v．假定;设想;假装;承担 1)_______________________that the economy will continue to improve. 认为经济继续好转是有道理的。 2) Assume what he said just now is true, what should we do? 3)________________________ stress is caused by too much work. 普遍认为，紧张是工作过重所致。 4)A lot of people______________________ poverty only exists in the Third World. (assumption) 许多人认为贫困仅仅存在于第三世界。 It is reasonable to assume It is generally assumed that make the assumption that ? Assuming 3. significance 　n．意义;意思;重要性;重要意义 1)The new drug___________________ for the treatment of the disease. 这种新药对于这种病的治疗有重大意义。 2)Their change of plan is strang