2017高考英语一轮复习同步检测：综合卷一（译林版）_高考复习指南

2017高考英语一轮复习同步检测：综合卷一（译林版）

　　D. nothing has been done to save polar bears so farPart Ⅳ　Writing (45 marks)

　　Section A (10 marks)

　　Directions: Read the following passage. Fill in the numbered blanks by using the information from the passage.Write NO MORE THAN 3 WORDS for each answer.

　　As a young child, one of my favorite summertime hobbies was catching fireflies(萤火虫) in a jar. We'd watch them flash all night long, and then set them free the next morning. Not only was it inexpensive entertainment, it served as a lesson in science as well. But today things are different for the firefly, as their numbers seem to be decreasing.

　　Fireflies are not flies at all. They are actually softwinged beetles(甲壳虫). There are about 170 different species in the United States. Most species flash to attract a mate and each species flashes in their own unique way.

　　Evidence suggests that firefly populations are declining. It is thought that habitat loss and pesticide poisoning contribute to their decline. An interesting possible cause, however, may actually be light pollution from businesses, homes and cars. Since fireflies flash to attract mates, light pollution might interfere with that flashing, making it difficult or impossible for fireflies to find a mate and breed.

　　As with any problem resulting from an upset balance of nature, there are things we can do to correct the imbalance. First, don't catch them in a jar and instead, admire them from a distance. Second, turn off your outside lights. Turning off lights can help the fireflies find each other and continue their cycle of life. Third, leave fallen leaves and rotting wood undisturbed. Many species of firefly larvae(幼虫) feed and shelter in leaf litter and rotting wood. Leaving this material to break up naturally will help support firefly populations. Last but not least, avoid using chemicals on your lawn. Chemical fertilizers and pesticides(杀虫剂) have been proven to kill beneficial insects in great numbers. Instead, use organic fertilizers to reduce pest insects.