Hi, my name is Eric. My 1 name is Li Mobai. I am an English boy. I2in China with my parents now. I'm tall and strong. I have short brown hair.

    Now, I3  in No. 1 Middle School in Yunyang. I am in Class1, Grade7. I'm the class monitor. I can 4Chinese very well. I5math and music, too. I'm a member of the Music Club. I like 6Chinese songs. Zhang Jie is my favourite star. I like sports very much. At weekends, I often play7 table tennis and basketball with my parents. 8 we go swimming.

    I have many good friends at school. I often 9them study English after school. So they think I'm a(n)10 boy. They all like me very much.

    Do you like me? Do you want to make friends with me?

Tom needs some help ________ his homework. Can you help ________?

对于反应N₂（g）+3H₂（g）═2NH₃（g），下列化学反应速率的表示中，所表示的反应速率最快的是（　　）

阅读下面文字，回答问题。

      ①根据典型的化石，古人的腿比现代人短，膝稍曲，身矮壮，弯腰曲背；嘴部仍似猿人向前伸出，也没有下巴的突起。②所制作的石器比猿人的有很大进步，这说明手部结构有了新的发展，因而更加灵巧。③脑量（1350毫升）比中国猿人的大些，脑子的结构复杂些，具有比猿人更高的智慧。④可能已经会取火，能猎获较大的野兽，并用兽皮做简陋的衣服。⑤和猿人相比，古人的劳动范围扩大了，生产力提高了。⑥所有这些情况，都显示古人在发展的进程上比猿人又向前跃进了。