用下列装置合成四氯化锡(夹持装置略)。注:在仪器3 中各加入0.6 mL浓硫酸，实验操作如下:

I.把干燥的仪器按图示装置连接好，在仪器1中加入B mL浓盐酸，在仪器2中加入2.0g KMnO₄，在仪器5中加入2～3颗Sn粒；

II.打开活塞，让盐酸流下，均匀产生Cl₂并充满整套装置，然后加热Sn粒，将生成的SnCl₄收集在仪器6中；

III.Sn粒反应完毕后，停止加热，同时停止滴加盐酸，取下仪器6，迅速盖好盖子。

请回答:

—In 1908 Lord Northcliffe offered a prize of ￡1,000 to the first man who would fly across the English Channel. Over a year passed before the first a____ was made.

完形填空。

      Li Lin is a good friend of mine. I go to 1 home for dinner. Zhang Tao and Wang Dong are 2at his home. We 3 a good dinner. There is 4 chicken, fish, milk and vegetables 5 the table. And there 6 some rice, noodles, cakes, water and tea on it, too. We like 7 very much. Li Lin and I like 8 meat, fish, noodles and cakes. Zhang Tao and Wang Dong like to eat chicken, fish and 9.They are really (确实地) nice. 10 are very happy.

写出划线词的反义词。

①这个袋子____，那个袋子轻。

②松鼠说河水____，老牛说河水浅。

③明明是个小马虎，妈妈教育他做事要____。

④我们要保护文物，不能____它。