课时作业（十七）Unit 6 Section III Grammar定语

课时作业（十七）Unit 6 Section III Grammar定语 从句（HI） I .阅读理解 A An earthquake is one of the most common natural calamities. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members. Fragile （易碎的）items, like those made of glass are easily broken and should usually be placed on a lower surface, near the ground instead of placing them on cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you. There is a strong chance of short circuits （短路）and fire outbreaks during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens. During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the staircases at all times. If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object. If trapped in debris （碎片），cover your mouth with a handkerchief or clothing. Tap on a pipe or wall so rescuers can find you. Use a whistle if one is available. Never shout for help. Shouting can cause you to breathe in dangerous dust. Do not light a match because you may bum yourself. Do not move about or kick up dust. 1. What does the underlined word “calamities mean in the passage A. Scenes. B. Disasters. C. Conditions. D. Sciences. 2. During the earthquake, people are advised to. A. go out of the building at once B. drive to a safe place quickly C. take shelter under a tree D. turn off electricity and gas immediately 3. What should people NOT do when they are trapped in debris A. Tap on a pipe or wall for help. B. Cover their mouths with handkerchiefs. C. Light a match for warmth. D. Use a whistle for help. 4. Whats the passage mainly about A. The damage caused by earthquakes. B. The rescue work after earthquakes. C. How to prevent earthquakes. D. What to do during earthquakes. B If you want to travel from Xian to Chengdu by train, it will take about 16 hours. But starting from December, 2017, the new Xian Chengdu high-speed railway has shortened this travel time to three hours. The 643-kilometer line is Chinas first high-speed railway to run through the Qinling Mountains, which a natural boundary （分界线）between Chinas north and south. With a speed of 250 km per hour, its also the first mountain-heavy train line to provide a 4G network. Along the way, the train passes through two areas for rare wild animalsone for pandas and the other for crested ibises （朱 鹘）. To reduce th