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完成句子。
1. It’s not just because they ____________(不能理解它是什么意思).
2. F 2 F ____________(表示面对面).
3. Homophone often use letters and numbers that ____________(听起来像单词或单词的一部分).
4. I don’t think twelve-year-olds should be allowed to ____________ (穿耳洞).
5. I think teenagers should be allowed to ____________ (与朋友们外出).
6. If we can’t wear our own clothes, we should be allowed to ____________(设计自己的校服).
7. I get nervous before big parties and then I ____________(出皮疹).
8. It isn’t good to borrow your friends’ books ____________(未经允许).
9. What do you think I should tell ____________(其余的学生).
10. My life ____________ (有了很大的改变)in the last few years.
完成句子。
1. It’s not just because they ____________(不能理解它是什么意思).
2. F 2 F ____________(表示面对面).
3. Homophone often use letters and numbers that ____________(听起来像单词或单词的一部分).
4. I don’t think twelve-year-olds should be allowed to ____________ (穿耳洞).
5. I think teenagers should be allowed to ____________ (与朋友们外出).
6. If we can’t wear our own clothes, we should be allowed to ____________(设计自己的校服).
7. I get nervous before big parties and then I ____________(出皮疹).
8. It isn’t good to borrow your friends’ books ____________(未经允许).
9. What do you think I should tell ____________(其余的学生).
10. My life ____________ (有了很大的改变)in the last few years.
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目前在学生的日常学习中,抄袭作业已是一种普遍的现象。上周北海某中学就此现象召开了主题班会。班会上,老师和学生就作业布置的目的、抄袭作业的原因以及可能带来的危害进行了热烈的讨论。请你根据表格内容提供的信息,以“”为题谈谈自己对这一问题的看法和认识,可做适当的展开。开头已给出。(词数不少于80词)
| 抄袭作业的原因 | 1、作业布置过多,学生做不完; 2、部分作业太难,学生做不出; 3、部分学生不愿思考或太懒,更愿意将时间花在玩上; 4、……。 |
| 作业布置的目的 | 1、让学生更好地了解所学的知识; 2、让老师知晓哪些知识点学生没有掌握,帮助老师提高教学水平; 3、……。 |
| 个人对抄袭作 业的看法 | 1、抄袭不对,违反校规。会让学生对功课更不感兴趣; 2、要诚实,勤奋学习,有困难可请教老师和同学; 3、……。 |
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_______________________________________________________________________________ 查看习题详情和答案>>
(1)科学研究发现纳米级的Cu2O可作为太阳光分解水的催化剂。
①在加热条件下用液态肼(N2H4)还原新制Cu(OH)2可制备纳米级Cu2O,同时放出N2。当收集的N2体积为3.36L(已换算为标准状况)时,可制备纳米级Cu2O的质量为 ;
②一定温度下,在2 L密闭容器中加入纳米级Cu2O并通入0.20 mol水蒸气,发生反应:
(2)已知:
请写出用足量炭粉还原CuO(s)制备Cu2O(s)的热化学方程式 ;
(3)用电解法也可制备Cu2O。原理如右上图所示,则阳极电极反应可以表示为 。 查看习题详情和答案>>
1. It’s not just because they ____________(不能理解它是什么意思).
2. F 2 F ____________(表示面对面).
3. Homophone often use letters and numbers that ____________(听起来像单词或单词的一部分).
4. I don’t think twelve-year-olds should be allowed to ____________ (穿耳洞).
5. I think teenagers should be allowed to ____________ (与朋友们外出).
6. If we can’t wear our own clothes, we should be allowed to ____________(设计自己的校服).
7. I get nervous before big parties and then I ____________(出皮疹).
8. It isn’t good to borrow your friends’ books ____________(未经允许).
9. What do you think I should tell ____________(其余的学生).
10. My life ____________ (有了很大的改变)in the last few years. 查看习题详情和答案>>