北师大版（2019）必修第三册Unit 8 Green Living同步课时作业（共4份，含解析）

Unit 8 Green Living Lesson 3 White Bikes on the Road—高一英语北师大版（2019）必修第三册同步课时作业 一、填空题 1.I walked nervously up the path _____ (lead) to the secret garden. 2.All who participated have gained a positive outcome from getting_____ (involve). 3.Why bother_____ (prepare) a room when I might not be here tomorrow 4.San Francisco plans to set up free, universally available wireless access to the Internet, _____(know) as Wi-Fi. 5.The symptoms of flu may be unpleasant, but they will _____ (appear) within a few days after taking the medicine. 6.A medical team_____ (consist) of five doctors and two nurses set off for the earthquake-stricken area. 7.The difference between the impossible and the possible lies in a person's _____ (determine). 8.As the company's _____ (found), he has been researching how to make more profit for the company. 9.Some students may feel a growing sense of fear with the exam season _____ (approach) while others may appear fairly calm. 10.A piece of stone_____ (find) on a Dutch beach suggests that our extinct human relatives, known as Neanderthals, were cleverer than previously thought. 二、七选五 Around the world, people are realizing the significant problems caused by plastic waste. In the last 65 years, we have become increasingly dependent on plastic. It's easy to understand why: it's cheap to produce, light — therefore easy and cheap to transport — and incredibly strong and durable. ①_____ One popular solution to the problem is to prohibit single use plastics. In the British supermarkets, shoppers are encouraged to make more environmentally-friendly choices in packing and transporting their food. ②_____ Some governments have even promised to ban the use of single-use plastic altogether by the not-too-distant future. However, such plans may not be beneficial to eliminate(消除) the use of single-use plastic altogether. ③_____ This is not just because of its low cost. It's also because infection and cross-contamination(交叉感染) are minimized. Plastic packaging is also crucial in the food industry. It ensures that food is safe for consumers. Another issue is that alternative materials to plastic are often more environmentally harmful than plastic. Take paper bags, for example. ④_____ The process requires cutting trees, the emission of greenhouse gases and the production of poisonous chemical waste. Even more pollution is created when paper bags break down. Clearly there is a need to reduce plastic waste and its impact on the environment. ⑤_____ Industries that rely on single-use plastics for people's health and safety must be considered. Moreover, alternative materials must be evaluated strictly regarding their own environmental impact. A. But it's these advantages that also make it so harmful. B. They are very fragile and rarely reusable, unlike plastic. C. One of the fields where single-use plastic has a vital role is medicine. D. However, simply banning their single use may not be the best option. E. ... ...