Unit 3 Environmental Protection Reading and Thinking 限时练-2023-2024学年高二英语人教版（2019）选择性必修第三册

高二英语限时练 出题人：王静静 审题人：孙娟 做题人：全体英语组 一：课文语法填空 In recent years, climate change has had a great impact______the animals. In 2013, the whole world _______( shock) by a news photo of a dead polar bear on Norway's Arctic island of Svalbard. Due to the increase in temperature,______ ( probable) , the polar bear died from lack of food. What is causing the increase? Climate scientists think it is the greenhouse effect, _______includes the "natural" greenhouse effect and the " man-made " greenhouse effect. The "man-made greenhouse effect has become_____big problem. People produce huge amounts of greenhouse gases, ______(leave) more heat energy trapped in the atmosphere. The rise in temperature has led to an increase in natural________( disaster). Climate scientists warn actions should be taken. Otherwise there will be a_______( high) price to pay. Governments should take measures_______(reduce) greenhouse gas emissions and individuals can also make a______( different) by reducing the carbon dioxide they produce. 二：阅读理解 A Indoor air pollution from coking and cleaning is a growing concern. Back in 1989, a NASA study found that plants put in sealed rooms could reduce the levels of pollutants, some of which can cause cancer. That finding led to the widespread notion worldwide that adding houseplants to rooms will lower of indoor air pollution, but later studies suggest that the effect is too small to make a difference in people's homes. So, Stuart Strand at the University of Washington in Seattle decided to enhance the pollution-reducing power of golden pothos(绿萝) by adding a rabbit gene for a liver enzyme(酶) that breaks down a wide range of pollutants. This approach boosted the effect several times. But even so, to make meaningful difference, Strand concluded that a fan would be needed to move air over the plants. Now, a start-up enterprise called Neoplants has created another GM pothos. It has two added genes from bacteria as well as extra copies of some of the plant's own g