Everyone has his own (自己的) hero. Many students like s ____ stars like C Ronaldo and Li Na. And many students like popular stars. B____ my hero is different. He is one of my c____. We are in the same class. His name is Allan. Allan is not cool. He is s____ and small. But he has a strong mind (内心). He comes f____ Wenchuan, Sichuan Province. And he l____ with his foster parents (养父母).

    Allan is good at all his l____ . He is always No.1 in G____ 7. He plays basketball and football w____ , too. He likes to help others. At home, he helps his foster parents a l____.

    All the teachers and students say Allan is a hero. Do you think so?

科学家们发现，有近20%的二氧化碳排放去向不明，这被称为“碳失汇”问题或“碳黑洞”问题．2013年11月发表的研究成果中：中国科学家领导的一个科研团队给出了解释﹣﹣盐碱土能够吸收二氧化碳．研究和证实了盐碱土对二氧化碳的吸收．盐碱土吸收无机碳，既是化学过程，也包括物理过程和生物过程．

中国社科院新疆生态与地理研究所研究员李彦称，该项目研究团队在对古尔班通古特沙漠多地的实验观测均表明，盐碱土对二氧化碳有吸收现象，并可初步定量检测出这种吸收能力：每平方米一年可吸收62克﹣622克二氧化碳，高于植物吸收量的2倍至15倍．

在少量盐碱土中加水，液体的pH值随加入水的体积的变化符合如图____ 曲线的变化．

中国近代史既是中国沦为半殖民地半封建社会的历史，也是中国追随世界历史潮流，走向近代化，实现中华民族伟大复兴的历史。阅读下列材料：

材料一：“是日本人打开了世界的眼界，让人们看到大清帝国真正的无能……，清国政体是一个明显失败的和政体……”

──（1895年）《纽约时报》

材料二：有人说：1840年，中国开始步入黑暗；1901年，中国陷入无尽的黑暗中；1911年，一道闪电划过，却黑暗依旧；1921年，中国终于迎来了曙光。

材料三：在中国近代化探索的历程中，国人相继走过了自救之路、维新之路、共和之路。但都没有完成反帝反封建的历史使命，探索之路任重道远。

结合所学知识，回答下列问题：

    It was cold yesterday. Tom didn't go out. He did housework. Sam went to play football. And he had a cold. He fell ill today. He's got a fever. Lili phoned him. She will come to see Sam. Sam's mother cooked lunch. They had noodles and eggs for lunch. Sam drank lots of hot water. It's good for him.