题目

完形填空；阅读下面短文，掌握大意，从A、B、C、D四个选项中选出最佳选项。 This is my new classroom. Please look at it. On the front wall of the classroom，there is a blackboard.    1   is very big. There is a clock and two pictures on the front wall,   2  . In front of the blackboard there is a desk. It’s our   3   . There is    4  computer on it. There are forty–six students in our  5  , so there are 47 desks,   6   for the boys, twenty-two for the girls, and one desk  7   the teachers. I sit in Row 2. Li Ming is in front of 同学们在学习光现象过程中有许多说法，我们从中选出五种：①光年是一个非常大的时间单位     ②红外线虽然是不可见光，但它遵循光的反射定律③平静湖面上的“倒影”，说明平面镜成“与物等大正立的像”的规律不成立④透过书桌上的玻璃板看玻璃板下面的字，看到的是字的虚像    ⑤透镜利用了光的折射原理下列判断正确的是（　　）A．①②③④⑤都正确B．①②④正确，③⑤错误C．②③⑤正确，①④错误D．②④⑤正确，①③错误