Ⅰ.语境填词
1．(2021·浙江卷1月)Today, in Australia, most children on average fall 2，000 steps short of the physical(身体的) activity they need to avoid being overweight.
2．China successfully exploded its first atomic bomb (原子弹) on Oct. 16, 1964, which enhanced(增强) the strength of the country's national defense.
3．The classic novel Red Crag (《红岩》) tells us about Chinese liberation(解放), which is a part of our shared memory.
4．Paper books still dominate(占优势) the textbook market, with digital textbooks making up less than 5 percent.
5．Having abused(滥用) his position as mayor to give jobs to his friends, Williams is now under investigation.
6．Being overweight had no specific effect on sleep patterns, while it was more likely that shorter sleep times stimulate(刺激) appetite and make kids hungry.
7．When he came back three hours later, they were still sitting on
