高中英语Unit4EarthquakesPeriodTwo课时作业新人教版必修1

（浙江专用）2016-2017高中英语Unit4EarthquakesPeriodTwo课时作业新人教版必修1Period Two Learning about Language.阅读理解AEveryone knows the earth is big，most of which is covered by water.About ninety percent of the worlds water is salty and is found in our oceans and seas.But as we cant drink seawater，how can it be important?Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths.Most of the different species of animals and fish depend on simple plants for their food.These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen.In fact，algae produce over half of the oxygen people breathe.How important seawater is! Each plant or animal in our seas and oceans is an important link in a food chain.The algae are eaten in large amounts by microscopic animals，which are in turn consumed by larger animals.These food chains are delicately balanced.The bad news about the food chains in the oceans is that they are under threat because of man.People once thought that the oceans were so big that it didnt matter if we dumped rubbish into them or caught huge quantities of fish and whales for food.But we now know this is not true and fish stocks in the oceans have started to drop.Thankfully，the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats.Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution.Finally，the importance of protecting oceans is being made known to more people.This is just the beginning of a long process to protect the oceans for our future.We depend on the oceans for fish which are an important part of the human diet.How important seawater is!【语篇解读】本文是一篇说明文。说明了海洋资源的重要性、目前海洋资源所面临的危险以及政府所采取的保护措施。1What does the underlined word “delicately” mean?Aeasily-damaged Bhard-brokenCsimply-made Dbeautifully 答案A词义猜测题。根据上下文，我们可以猜出delicately是“脆弱地，容易损坏地”的意思。2In the past，people hold the view that the rubbish _Awould kill the animal in the seaBwould change the balance of the seaCwould pollute the seaDwouldnt have a bad influence on the sea答案D细节理解题。根据第四段中的“People once thought that the oceans were so big that it didnt matter if we dumped rubbish into them.”可知人们过去以为海洋那么大，扔进一点垃圾不会对海洋造成多大的影响。3Which is the best title of the passage? AThe importance of seawater.BFishing on the oceans.CImportance of food chains.DHow to deal with seawater pollution.答案A主旨大意题。根据文章的第一段，以及第二段和最后一段的末句可知文章的中心是在说明海水的重要性。BWhen the earthquake hit Japan on March 11，2011，workers in a supermarket in Japan didnt run away when they felt the shaking.Instead，they held on the shelves and tried to stop the goods (货物) from falling down.Reporters from NHK，the countrys largest TV station，stayed calm in front of cameras during the earthquake，even though some were facing real danger.The earthquake was the most powerful one to hit Japan in the countrys history.But Japans reaction (反应) to the accident has shown that it is the most earthquakeprepared country in the world.The calm the Japanese showed during and after the quake has impressed the world.This is because Japan has “an earthquake culture”Japanese people are taught how to prepare for and react to earthquakes from a young age.Schools in Japan organize earthquake practices every month.They make students become familiar with being in an earthquake.Japan also has a good earthquake warning system (警报系统)Warnings were broadcast on television，radio and mobile phones nine seconds after experts (专家) first knew about the quake on March 11.The warning system is unable to predict earthquakes.But it can usually alert people about 15 seconds before they feel the effects.Even 15 or 20 seconds can be enough time to save peoples lives.【语篇解读】本文是记叙文。讲述了在2011年3月11日的日本大地震中，人们面对地震表现地非常镇静；并且讲述了日本的地震文化以及介绍了日本先进的地震报警系统。4After experts first knew about the quake on March 11，warnings were NOT broadcast _Aon radio Bon the movieCon television Don mobile phones答案B细节理解题。由短文第六段中“Warnings were broadcast on television，radio and mobile phones nine seconds after experts (专家) first knew about the quake on March 11.”可知，没有在电影中播出。故选B。5What does the underlined word “alert” mean in Chinese?A改善 B提高C提醒 D改变答案C词义猜测题。“报警系统”当然是“提醒”人们了。故选C。6What does the story mainly tell us about?AJapans earthquake culture.BThe bad results caused by the earthquake.CJapanese people were scared after the earthquake.DJapanese people were homeless after the earthquake.答案A主旨大意题。本文主要讲述了日本人在地震面前表现地非常镇静，以及讲述了日本的“地震文化”。CIm lying on my back in my grandfathers orchard (果园)，looking up at the branches above me.It is one of the last days of summer.Already the days are shorter and the nig