建国以来我们党在解决“三农”问题上，对农村生产关系进行过几次重大调整或变革。

材料一：废除地主阶级封建剥削的土地所有制，实行农民的土地所有制，借以解放农村生产力，发展农业生产，为新中国的工业化开辟道路。----------《中华人民共和国土地改革法》

材料二：

图1：农民报名入社

材料三：

材料四：该制度“采取了统一经营与分散经营相结合的原则，使集体的优越性和个人的积极性同时得到发挥。”--《当前农村经济政策的若干问题》（1983年1月）

电影《阿凡达》中的发光植物为我们打造了一幅绚丽、梦幻的外星世界景观．现在，这种会自发光的植物已经被科学家带到了现实生活中．据报道，美国科学家近来利用生物技术成功培育出了名为“星光阿凡达”的发光烟草，它甚至可以代替灯泡来照明．

如果你是右图漫画中助人为乐的学生，你会（）

①觉得付出的太多，得到的回报太少，不值得

②感受到比得到帮助时更大的快乐

③认为帮助别人不仅有益于他人和社会，也有益于自己

④觉得帮助他人的过程就是成就自己的过程

    An earthquake is a shaking of the ground____(cause) by the sudden breaking and shifting of large sections of Earth's rocky outer shell. Earthquakes are among the most____(power) events on earth, and their results can be terrifying. Rock movements during an earthquake can make rivers____(change) their course. Earthquakes can cause great damage and loss of____(live). Large earthquakes beneath the ocean can create a series____huge and destructive waves called tsunamis____flood coasts for many miles. Earthquakes almost never kill people____(direct). Instead, many deaths and injuries in earthquakes result from ____(fall) objects and the collapse（倒塌）of buildings, bridges, and other structures. Fire caused from broken gas or power lines is another major danger during____quake. Spills（溢出）of ____(harm) chemicals are also a concern during an earthquake.