中小学教育资源及组卷应用平台 期末专项培优 语法填空 一．语法填空（共15小题） 1．Regular exercise can increase your body's energy expenditure（能量消耗）and it is also a great way （1） （improve）your productivity and mental focus throughout the day.The increased energy levels that occur as a result of exercise （2） （be） also likely to lead to more active habits throughout the day，such as taking the stairs rather than the lift，or（3） （walk） to speak to workmates instead（4） emailing.This increased activity will then bring physical and mental benefits. Physical activity can help us to improve the length and the quality（质量）of our sleep，（5） will in turn make further contributions to our health and wellbeing.While there is no absolute figure（绝对数值）we should aim for in terms of sleep time，most people will find that they fall somewhere between 6﹣9 hours a night.Quality is（6） （certain） more important than quantity. Regular physical activity can help us to manage life's stress much（7） （well） as a distraction technique.As（8） （discuss），exercise can help you achieve a more positive outlook as well as improving sleep quality，both of which are important in managing stress.Also，（9） is thought that exercise can help to improve our ability to activate the control centers in our brain and the nervous system，which is very（10） （help）when we are under stress. 2．The world's insects now face extinction.More than 40% of insect species are declining and a third（1） （be）at risk of extinction.The rate of extinction is eight times faster than that of mammals and birds.The total mass of insects is falling by 2.5% a year，（2） （suggest） they could disappear within a century，according to the first global scientific review. The planet is at the start of a sixth mass extinction in its history，with huge losses already（3） （report） in larger animals that are（4） （easy） to study.But insects are by far the most varied and abundant animals.They are essential for the proper functioning of all ecosystems. The analysis says modern agriculture is the main driver of the declines，（5） （particular） the heavy use of pesticides（农药）.（6） we change our ways of producing food，insects as a whole will go down the path of extinction in a few decades. "If insect species losses cannot be slopped，there will be disastrous consequences for both the（7） （planet） ecosystems and for the survival of mankind." said Francisco Sanchcz﹣Bayo，at the University of Sydney，（8） wrote the review. One of（9） biggest impacts of insect loss is on the many birds，reptiles（爬行动物）and fish that cat insects. "If this food source is taken away，all these animals will starve to（10） （die），" he said. 3．Did you grow up in one culture，your parents come from another，and you are now living in a（1） （total） different country？If so，then you are a t ... ...
