语法填空（共10小题，每小题1.5分，满分15分）
阅读下面短文， 在空白处填入1个适当的单词或括号内单词的正确形式。
Lions, tigers and other animals are staying awake at night 41.____________(avoid) human beings, a new study finds.
Scientists have known that human activities can lead to changes in nature. Many animals may move around less or travel to far places to keep away 42.____________ people. By being awake at night, animals can also be on guard against possible enemies and spend less time 43.____________(look) for food.
The latest research found even activities like farming and camping can 44.____________(fright) animals and cause them to become more active at night. 45.____________ had been studied were lions in Tanzania, tigers in Nepal and monkeys in Brazil. Researchers compared 46.____________(careful) how much time those animals were active at night in areas of human activities, such as hunting and farming. 47.____________ was human activities that caused an increase of about 20 percent in nighttime activities, even in creatures that usually sleep at night. Results 48.____________(publish) in the journal Science two months ago.
The new findings are 49.____________(usual) because no one else has looked at it in such detail before. Ecologist Marlee Tucker was 50.____________(surprise) that any kind of human activities is enough for animals to see people as a threat.
第二节语法填空[
阅读下面短文， 在空白处填入1个适当的单词或括号内单词的正确形式。
Lions, tigers and other animals are staying awake at night 41.____________(avoid) human beings, a new study finds.
Scientists have known that human activities can lead to changes in nature. Many animals may move around less or travel to far places to keep away 42.____________ people. By being awake at night, animals can also be on guard against possible enemies and spend less time 43.____________(look) for food.
The latest research found even activities like farming and camping can 44.____________(fright) animals and cause them to become more active at night. 45.____________ had been studied were lions in Tanzania, tigers in Nepal and monkeys in Brazil. Researchers compared 46.____________(careful) how much time those animals were active at night in areas of human activities, such as hunting and farming. 47.____________ was human activities that caused an increase of about 20 percent in nighttime activities, even in creatures that usually sleep at night. Results 48.____________(publish) in the journal Science two months ago.
The new findings are 49.____________(usual) because no one else has looked at it in such detail before. Ecologist Marlee Tucker was 50.____________(surprise) that any kind of human activities is enough for animals to see people as a threat.
第二节语法填空[
