根据短文内容及首字母提示，补全单词。

    Mr. Jones had a quarrel with Mrs. Jones the other day. So they were very angry with each other. For several days they did not s____to each other at all. One evening Mr. Jones was very t____ when he came back from work, so he went to bed at once after d____. Of course he did not say a____to Mrs. Jones before he went upstairs. Mrs. Jones washed the dishes and then did some sewing. When she went up to bed much l____ than her husband, she found a p____ of paper on the small table near her bed. On it were the words, 'Mother—Wake me up at 7 a.m.—Father.'

    When Mr. Jones w____ up the next m____, it was nearly 8 a. m. —and on the small table near his bed he saw a____ piece of paper. He took it and r____these words: 'Father—Wake up. It's 7 a.m. —Mother.'

下列各组热化学方程式中，化学反应的ΔH 前者大于后者的是
①C(s)＋O2(g)===CO2(g)　ΔH1 C(s)＋ O2(g)===CO(g)　ΔH2
②S(s)＋O2(g)===SO2(g)　ΔH3 S(g)＋O2(g)===SO2(g)　ΔH4
③H2(g)＋ O2(g)="==" H2O(l)　ΔH5 2H2(g)＋O2(g)===2H2O(l)　ΔH6
④CaCO3(s)===CaO(s)＋CO2(g)　ΔH7 CaO(s)＋H2O(l)===Ca(OH)2(s)　ΔH8

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（     ）

在对待自然的态度上，                  。生态不仅是科学问题，而且是伦理问题，正是伦理为科学规定了界限。

①但是，同为主张善待自然，出发点仍有很大分歧②我的看法是，两派都有道理，但说的是不同层次上的道理，而低层次的道理要服从高层次的道理

③一派反对人类中心论，认为从根本上说，自然是一个应该敬畏的对象

④一派强调以人类为中心，从人类长远利益出发，合理利用自然

⑤合理利用自然是科学，不管合理的程度多么高，仍然是科学，而科学必有其界限

⑥现在大概不会有人公开赞成掠夺性的强盗行径了

“全面二孩”政策实施后，优生成为众多家庭关注的话题。下列做法不利于优生的是（    ）

看图，根据图片内容， 默写单词。

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