1、Lesson 27: Planet DannyI. Learning aims:Master the new words: telescope, solar, unless, double, mystery II. Learning important and difficult points: 1) Try looking through the other end.2) Maybe Brian and I can join you after supper.3) Scientists use huge telescopes when they look for planets.4) Wel
2、l, its worth a try, even if I dont find a planet.Language Points:1. double【用法】作可数名词，意为“两倍、双倍”，复数形式是doubles。【举例】Homework is double at weekend. 在周末作业是双倍的。【用法】作形容词， 意为“双倍的、两倍的、两用的”，在句中作定语或表语。【举例】I think you will get double harvest. 我想你们会有双倍的收成。Wed like a double room. 我们想要一个双人间。2. Maybe Brian and I can
3、join you after supper. 晚饭后或许布莱恩和我会加入到你这里。【用法】动词join在这里表示“加入”，如果表示“加入到某人的某种活动中”可用句式join somebody in 。【举例】Lisa, can you join us in the game? 丽萨，你能和我们一起做游戏吗？3. Well, its worth a try, even if I dont find a planet. 好的，这值得一试，即使我没有发现行星。【用法】even if意思是“即使、纵然”，引导让步状语从句，表示某种条件。【举例】He will come on time even if it rains. 即使下雨,他还是会准时来的。【拓展】在口语中，even if往往用在句首。【举例】Even if he is poor, he always looks happy. 即使他很穷，但看上去他总是很快乐。
