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1、课时作业(十八)Unit 5The Power of natureSection Warming Up & ReadingLanguage Points.单句语法填空1A violent eruption (erupt) took place in Afghanistan recently, causing many deaths and injuries.2It is absolutely (absolute) important that children be educated to follow traffic rules at an early age.3After I got on
2、 the train, my mother stood at the platform, waving (wave) her hand at me with tears in her eyes.4Those families are so poor that they dont have money to buy the sports equipment (equip) their children need.5After a long discussion at the meeting, the top leaders of the company decided to_appoint (a
3、ppoint) Leo as a new manager.6Indeed, we can see some top students actually (actual) spend fewer hours on their studies than their classmates.7You are not the most suitable (suit) applicant, but you are so confident that we decide to give you a chance to prove yourself.8Last Monday, I was asked to g
4、ive the new students a test to_evaluate (evaluate) their English level.9. Having_explained (explain) the question many times, Henry lost patience with his slow brother.10The Smiths were spending their holidays in Pariswhen a terrible tsunami happened.阅读理解The geographic location of Japan makes it a c
5、ountry where tsunamis，typhoons and earthquakes often happen. Japan is located on the Ring of Fire, which spreads for 25,000 miles from New Zealand to Japans Pacific Coast，to Alaska，and then down the pacific coasts of North and South America. 90% of all earthquakes take place around the Ring of Fire.
6、 It is also home to 452 volcanoes. The Japanese government has a fiveyear plan to protect the country from deadly tsunamis. Their plan is to build 440 concrete walls, reinforced with steel. The walls will cover 140 miles of coastline and cost $8 billion. The government used computer simulations (模拟)
7、 to determine how large the next tsunami could be, in order to decide how tall and long the walls should be built. Building tsunamisafe walls is not a new idea for the Japanese. 50 years ago, Japan built the first tsunami protection wall. In 2011, a 49foot high wall saved 3,000 local, people in an e
8、astcoast town，Fudai.When the wall was being built, people thought it was a total waste of money. After the tsunami, those same people were glad for what it did. Many people dont like this plan because of past failures. The protection wall at Kamaishi was the largest in the world at the time, but fel
9、l to the powerful tsunami of 2011. Additionally, a wall planned for another city, Koizumi, will be 48 feet high when completed. However, the wave that destroyed the city in 2011 was higher than that.Some Japanese worry that the huge walls might ruin tourism in Japan, as well as its ecosystems. They
10、think that the walls might marJapans appearance, and make the country look strange. Some would rather the government focused on evacuation(撤离)measures. Some even call for reshaping the coastline itself. Many remind us that technology based on computer predictions cannot always provide a perfect solu
11、tion. Nature is unpredictable.【文章大意】文章主要介绍了日本为防止海啸造成的巨大破坏而修建防洪墙这一情况。1To protect Japan from tsunamis, _. A140milelong concrete walls will be builtBits government has already spent $ 8 billionCthe land of the country will rise to a higher positionDplans are being made to stop underwater earthquakes解析：
12、A细节理解题。由第二段中的Their plan is to build 440 concrete walls和The walls will cover 140 miles of coastline可知，为了保护日本免遭海啸之灾，长达140英里的混凝土高墙将被建造，故选A项。2Kamaishi and Koizumi are mentioned in the text to show _.Aconcrete walls are not always helpfulBboth cities are easy to be hit by tsunamisChigher walls should hav
13、e been built thereDno one has the ability to fight against nature解析：A推理判断题。由倒数第二段中的Many people dont like this plan because of past failures.以及该段中所列举的两个例子可知，作者在文中提到Kamaishi和Koizumi这两个城市是为了说明防洪墙并非总是管用，故选A项。3The underlined word “mar” in the last paragraph probably means “ _ ”Asave BdamageCmake Dimprove
14、解析：B词义猜测题。由该词后面的make the country look strange可知，有些人认为这些高墙可能会破坏日本的容貌，故选B项。4What is mainly described in the text?AThe Ring of Fire.BComputer simulations.CNatural disasters in Japan.DHigh walls against tsunamis in Japan.解析：D主旨大意题。总览全文可知，本文主要介绍了日本为防止海啸造成的巨大破坏而修建防洪墙这一情况，故选D项。.完形填空It was Monday morning, a
15、nd Katie hurried down the hallway to her classroom. She was_1_ her best friend, Sarah, to work on their science fair project. The two girls were testing various plant foods on the same type of plant. Each morning before school, the girls_2_ the plants. In the afternoons they took turns watering the
16、plants with different types of_3_ mixtures.Their four plants had been standing_4_ on Friday afternoon，_5_ now they hung dangerously low. Katie touched the soil in the pots and discovered that it was almost _6_. “Oh, no！” she said to herself. “Sarah must have_7_ to water them on Friday! ” She was staring
