完形填空(阅读下面的短文，然后从四个答案中选出最佳答案)

Thomas Edison 1 a famous American scientist. He was born 2 1847. When he was 3 child, he liked to 4 how things worked. He was in school 5 only three months. He 6 his teacher a lot of strange questions. Mostof them 7 his lessons. 8 teacher thought the boy 9 bright and was not worth 10 11 he told this to Edison's mother, she took her son 12 school. As she 13 a teacher, she taught him 14 . The boy read 15 . Soon he 16 very interested in science, 17 the age of ten, Edison 18 a chemistry lab for himself. Ever since then, he never stopped searching for new and 19 ways 20 .

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任务型阅读(共5小题；每小题1分，满分5分)

请认真阅读下面短文，在表格中填入适当的单词(注意：每空1个单词)。

How to protect children from unsafe material online has long been discussed in the USA. For some parents, the Internet seems like a jungle, filled with danger for their children. But jungles contain (包括) wonders as well as dangers.

Most kids have started to use search engines. Many of them are great at finding lots of interesting websites, and they can also locate places where you might not want your kids to go. There are search engines designed just for kids. A certain software contains only sites that have been selected as safe. The most popular way to limit access would be to use what is known as a ‘content screener (过滤器)’. But this can’t be wholly reliable (可靠的), and the best thing parents can do is to talk to their kids and let them know what is OK or not OK to see or do on the Internet. Another way is that Mum or Dad is nearby when the child is surfing the Internet.

Martin is a fifteen-year-old boy. He used to be a“problem child”, but a recent 46  with his mother changed his life. He didn’t use to give his mother many problems. 47, after his father’s death a few years ago, Martin’s life became 48 more difficult. His mother couldn’t afford to pay for her child’s education. To do this, she 49 work, and so was often not at home.
His mother looked after him as 50 as she could. Unfortunately, Martin still caused problems. He was not 51 in studying and he often got in to trouble. Luckily, his mother was very 52 and didn’t give up trying to help him. In the end, she 53 a difficult decision:to send him to a boys’boarding school. Martin hated it and used to cause a lot of trouble.
One day, he told his teacher he wanted to leave the school. The teacher said it was necessary for Martin to 54 with his mother. Martin called his mother, but to his 55, this phone call changed his life. “It was exactly 56 Ineeded, ”he said. “My mother helped me to understand how much she had given me. She also told me that even though my father was no longer with us, he was 57 me and would always take pride in every thing good I do. That’s when I decided to change. I realize that 58 my father died, I have been afraid of being alone, and have tried to make my mother pay more attention to me. ”
　　 Now Martin has 59 changed. He has been working hard and is now one of the best students in his class. How was he able to change?His mother’s 60 helped him to feel good about himself.