右图是新版电视剧《红楼梦》中的太虚幻境石牌坊，两边有一副对联：“假作真时真亦假，无为有处有还无。”，与这一对联思想相吻合的言论是

阻值为10Ω的一段导体，加在其两端的电压为4V时，通过它的电流为　 ____　A，当它两端的电压减小到2V时，它的电阻为　 ____　Ω，它的电功率改变了　 ____W．

阅读短文，从方框中选择单词，根据实际情况用适当的形式，使短文意思完整、通顺。每空一词，每词只能用一次。

swim,  four,  snow,  after,  weather

    We know that there are ____ seasons（季节）in a year: spring, summer, autumn and winter. In spring, the ____ is warm. Everything grows fast. It is a good season for hiking (远足). Summer comes ____ spring. It is usually hot in summer. The children like to go ____. They are very happy in the cool water. It often rains and sometimes it rains heavily. In autumn, it is cool. The farmers are busy. It is often cold in winter. Sometimes it ____, and all the houses, trees and other things become white. The world is so beautiful in this season and people are very happy!

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧）, 并在此符号下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：每处错误及其修改均仅限一词

    On Wednesday of this Culture & Art Week, we invite the American teacher Prof. Hudson to our school. He gave a class to us and his class left us a very deeper impression.

    Prof. Hudson had a free talk with us in the simple but humorous English. He spoke slowly and clearly so that we could follow her well. In the same time, he would repeat that we did not understand.

Greatly encouraging, most of us took an active part his class.

    From his lessons, we came to the conclusion that it is not so difficult to learning English well.

阅读下文，完成下列小题。

生于忧患，死于安乐

    舜发于畎亩之中，傅说举于版筑之间，胶鬲举于鱼盐之中，管夷吾举于士，孙叔敖举于海，百里奚举于市。

    故天将降大任于是人也，必先苦其心志，劳其筋骨，饿其体肤，空乏其身，行拂乱其所为，所以动心忍性，曾益其所不能。

    人恒过，然后能改；困于心，衡于虑，而后作；征于色，发于声，而后喻。入则无法家拂士，出则无敌国外患者，国恒亡。

    然后知生于忧患而死于安乐也。