阅读下列语段回答小题。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
忽然教堂的钟声敲了十二下。祈祷的钟声也响了。窗外又传来普鲁士兵的号声——他们已经收操了。韩麦尔先生站起来，脸色惨白，我觉得他从来没有这么高大。
“我的朋友们啊，”他说⑵“我——我——”
但是他哽住了，他说不下去了。
他转身朝着黑板，拿起一支粉笔，使出全身的力量，写了两个大字：
“法兰西万岁！”
然后他呆在那儿，头靠着墙壁，话也不说，只向我们做了一个手势：“散学了，——你们走吧。”
回答：
语段从    、    、    三方面描写韩麦尔先生，表现他     的思想感情。(4分)
文中的“钟声”意味着什么？暗示了什么?
选文中有一句话暗示了小说的社会背景，是哪一句话？
韩麦尔先生“使出全身力量”写字的动作表现了什么?
“他呆在那儿，头靠墙壁，话也不说”这一表情如何理解？