人教版高一英语必修1 Unit3全套.ppt

——进行时表将来的用法 它常表最近或较近的将来，所用动词多是转移动词。如： 　　1. I’m going. 我要走了。 　　2. When are you starting? 你什么时候动身？ 　　表将来的现在进行时除用于转移动词外，亦可用于某些非转移动词。如：　 现在进行时除表现在外，还可以表示将来。现在进行时表将来时常有“意图”“安排”或“打算”的含义。这种现在进行时比较生动，给人一种期待感。 Structures * ppt课件 1. I’m meeting you after class. 课后我找你。 2. What are you doing next Sunday? 下星期你打算干什么？ 但偶尔也表示较远的将来。如： When I grow up, I’m joining the army. 我长大了要参军。 　　表将来的现在进行时有时含有“决心”的意思，多用在否定结构中。如： 1. I’m not going. 我不走了。2. I’m not waiting any longer. 我不再等了。　 * ppt课件 有时也用在肯定结构中。如： I’m backing out. 我要打退堂鼓了。 　　用这种现在进行时与对方讲话时可变成命 令，不过语气比较温和。如： You are staying. 你留下吧。 2.Don’t forget: you are taking part too. 不要忘记：你也要参加。 * ppt课件 　 同一般现在时一样，现在进行时也可在时间、条件或原因状语从句中表示将来。如： when you are passing my way, please drop in. 你什么时候路过我们家，请进来坐。（用于时间状语从句） 2. If they are not doing it, what I am I to do? 如果他们不干，那我该怎么办？（用于条件状语从句） 　　 表示将来的现在进行时也可用在间接引语中，表示说话人相信它将是事实。如： 　He said he is going tomorrow. 他说他明天走。 * ppt课件 Mekong Map Background * ppt课件 China Laos Thailand Cambodia Vietnam South China Sea Myanmar * ppt课件 The natural resource management issues and priorities differ in each of the countries and the level of development and populations vary significantly. In north-east Thailand, with over 20 million people, the water resources are virtually fully developed and problems are emerging associated with Stalinization of arable lands as result of over-clearing of native vegetation and poor irrigation, soil erosion, and declining water quality in the rivers and streams. Background * ppt课件 In Laos, with 5 million people and a much poorer country from a GDP perspective, the water resources are largely undeveloped. Cambodia, with 10 million people, is recovering from decades of war, and in the Mekong delta some 20 million Vietnamese live on some of the most highly productive agricultural land in the world. Background * ppt课件 Insist的用法 1.意思是“坚持要”表示命令、要求，其后之宾语从句要用虚拟式动词原形 或者“should + 动词原形” 例句：I insist that you (should) be