7.下列说法错误的是…………………………………………( )
A.淀粉溶液中滴加碘水呈现蓝色 B.用海水晒盐属于合理利用海洋资源
C.家用食品保鲜袋属于有机高分子合成材料 D.将工业废水直接排放到江河中可节约成本
6.5月31日是“世界无烟日”，烟气中含有一种能与血液中血红蛋白结合的有毒气体是( )
A.CO2 B.O2 C.H2 D.CO
5. 为创建“国家环保模范城市”, 今年某市将原来的垃圾桶撤换成分类型垃圾收集箱。下图是国家颁布的“城市生活垃圾分类标志”。废旧电池投入的垃圾收集箱上应贴有的标志是
4. 市场上销售的加碘食盐、含氟牙膏、高钙牛奶、补铁酱油等，说明化学与人的健康密不可分。这里的碘、氟、钙、铁是指………………………………………………………( )
A.单质 B.分子 C.元素 D.原子
3.下列物质中，属于纯净物的是…………………………………………………( )
A.蒸馏水 B.洁净的空气 C.鲜橙汁 D.澄清石灰水
2.下列元素符号书写正确的是 ……………………………………………( )
A.镁MG B.铜cu C.铁Fe D.硅SI
2.从人们的衣食住行，到探索太空，都离不开材料。下列属于复合材料的是( )
A、合成纤维 B、铝合金 C、钢筋混凝土 D、陶瓷
题意。)
1.古诗词是古人为我们留下的宝贵精神财富。下列诗句只涉及物理变化的是( )
A.野火烧不尽，春风吹又生 B.春蚕到死丝方尽，蜡炬成灰泪始干
C.只要功夫深，铁杵磨成针 D.爆竹声中一岁除，春风送暖入屠苏
3．本文要注意，概要一定要根据文段的时态来写。同时，绝对不能抄袭原文的句子。文章是谈谈影响你的一生的某一本书，属于评论性文字和结论性的观点，故用一般现在时或一般将来时态较为合理。
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[答案]
The Most Influential Book in My Life
Jane gives us the outline of the book, The Story of My Life by Helen Keller. The book is filled with courage, struggle and faith throughout, which affects Jane's life most influentially, and she expects herself to be courageous as Helen Keller.
Books really have good or bad influence on one's growth. To me, the book named Monkey King by Wu Chengen is the most influential book in my life. The Monkey King, Sun Wukong, had a bitter experience of helping his master overcome a great many difficulties in order to get good results. In fact, Failure is a common thing in life. But there are different attitudes towards failure. Years ago, I had a bad attitude towards my failure. However, I have had a good attitude towards failure since I read the book. Now, I don't mind failure because it isn't indeed a bad matter, which tells us how to approach our goal. Whenever I am faced with great difficulties, I never say easily, "I will give up!"
Good books are both important and beneficial to the character development and personal growth of the young people. This is what I have got from my experience.
2．本文的概要必须包含以下要点：I like the book named The Story of My Life by Helen Keller,
which is the most influential book in my life./The book is inspiring.../It is filled with courage, struggle and faith throughout./I hope I can be as courageous as she.
