题目:
语法填空。
阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入适当的词或使用括
号中词语的正确形式填空。
Each of us fails from time to time. If we are wise, we accept these failures as a necessary part of the
learning process. But all too often 1______ parents and teachers we do not allow our children to have the
right. We convey either by words 2______ by actions that failure is something to be ashamed 3______,
and that nothing but top 4______ (perform) meets with our approval.
When I see a child under this kind of pressure, I think of Donnie. He was 5______ shy, nervous
perfectionist. His fear of failure 6______ (keep) him from classroom games that other children played
delightedly. He seldom answered questions for fear 7______ he might be wrong. He seldom finished
his work because he repeatedly checked with me to be sure he hadn't made a mistake. I tried my best
to build up 8______ self-confidence. But nothing changed until midterm, 9______ Mary Anne, a student
teacher, was appointed to our classroom. She was young and pretty, and she loved children. My pupils,
Donnie 10______ (include), adored her. With her frequent encouragement, Donnie became confident.
答案:
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答案:D题目分析:三个已知方程式为H2O(g)=H2O(l)△H1=-Q1kJ•mol-1 (1)C2H5OH(g)=C2H5OH(l)△H2=-Q2kJ•mol-1 (2)C2H5OH(g)+3O2(g)=2CO2(g)+3H2O(g)△H3=-Q3kJ•mol-1(3)乙醇燃烧生成液...