题目

据《光明日报》报道：截至2020年5月31日，全国参与新冠肺炎疫情防控的志愿者约为8810000，将数据8810000科学记数法表示为________． 答案：【答案】8.81×106【解析】科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数．确定n的值时，要看把原数变成a时，小数点移动了多少位，n的绝对值与小数点移动的位数相同．解：8810000=8.81×106，故答案为：8.81×106．默写（共40小题，每小题0.5分，满分20分） 1.: Big Ben takes its name from Sir Benjamin Hall who 1.__________ 2.__________ 3.__________ the making of the clock when the new Houses of Parliament were being built. It is not only 4.__________ 5.__________ 6.__________, but is extremely accurate as well. Big Ben has rarely gone wrong. Once, however, it 7.__________ 8.__________ give the correct time. 2.: It was over 30 feet 1.__________ 2.__________ and had a 2,500-horsepower engine. Although Campbell 3.__________ 4.__________5.__________ 6.__________ over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. 3.: They have all 1.__________ 2.__________3.__________ 4.__________ by a boy who, while playing truant, traveled 1,600 miles. He has surely set up a record for the thousands of children who 5.__________ 6.__________ evading school. 4.:   He 1.__________ 2.__________ 3.__________ 4.__________ Paris until he built his home on the island. British theatre is especially 5.__________ 6.__________ 7.__________  8.__________ William Shakespeare and his plays. Also, it is still common to throw things onto the stage after a performance in a British theatre, but it is more usual fore people to throw flowers 9.__________ 10.__________ money or vegetables today. 5.: Han often said, “1.__________ 2.__________ 3.__________ 4.__________ drive a genius like you, Dr Einstein.” After looking through the concerto, Mozart’s father was 5.__________6.__________ 7.__________ speak. For example, when he was travelling, he often 8.__________ 9.__________ 10.__________ where he had placed his tickets.