Unit 5 Amazing nature 单元阅读提升练-【勤径学升】2025-2026学年七年级下册英语同步练测配套教师用书（外研版·新教材）

该初中英语单元复习讲义通过主题整合构建知识体系，围绕自然现象、环境保护、地理探索等主题，用框架图梳理阅读理解策略（如细节查找、推理判断），表格归纳核心词汇（如北极光、珊瑚礁等术语），思维导图关联语法点（如时态、非谓语动词），清晰呈现语言知识与主题内容的内在联系。 讲义亮点在于“主题式分层练习”设计，如A篇阅读理解（北极光）考查科学现象描述与细节理解，培养语言能力；B篇（大堡礁）结合环保议题引导分析问题成因，提升思维品质。完形填空（乔戈里峰）强化词汇在语境中的应用，语法填空（南极洲）训练语法规则运用。每个题型附答题思路提示，基础学生可掌握方法，优秀学生能深入探究，助力教师实施精准分层教学。

[答案 P19] 一、阅读理解。 A Have you ever been to Iceland? How about Norway or Finland? Maybe you've travelled to northern Russia or Canada. These are some of the best places to see one of our planet's most beautiful natural phenomena(现象). What are we talking about? The Northern Lights(北极光), of course! The Northern Lights appear as beautiful colours in the night sky. The most common colour of the Northern Lights is green. However, they can also be red, pink, yellow, or purple. What causes the Northern Lights? Like all the natural light on the earth, they come from the sun. Sometimes, the sun has big storms and gives off electrically charged particles(带电粒子). When the electrically charged particles reach the earth, some of them pass through to the air around our planet. They then collide(碰撞)with the gases(气体)around the earth, which causes beautiful lights with colours. The colours of the Northern Lights have to do with the height. For example, when electrically charged particles collide with gases less than 150 miles from the earth's surface, they produce green light. When the collision happens higher than 150 miles, they make red light. Over time, many people have tried to explain the Northern Lights. Some cultures have ancient stories about them. Today, however, we know the science behind the Northern Lights, and people travel thousands of miles each year hoping to see them. Many say it's a magical experience! ( D )1.What can we learn from paragraph 1? A．Who discovered the Northern Lights. B．How the Northern Lights are created. C．Why the Northern Lights are colourful. D．Where the Northern Lights can be seen. ( B )2.To know how the Northern Lights are created, you can read . A．paragraph 2 B．paragraph 3 C．paragraph 4 D．paragraph 5 ( C )3.From paragraph 4, we know that the colours of the Northern Lights have to do with . A．the air B．the time C．the height D．the temperature ( D )4.Who is the passage most probably written for? A．Music fans. B．TV reporters. C．News readers. D．Science lovers. B Australia's Great Barrier Reef is the world's largest reef system. It is over 2，600 kilometres long. You can even see it all the way from outer space. The reef is home to many animals: fish, birds, turtles, sharks and even whales. 1.B Climate change, overfishing, tropical storms and water pollution make the reef in great danger. Coral reef experts at Australian universities say that if we do nothing to stop it, the coral reef could be destroyed before 2030. 2．E Everyday things like driving cars, using electricity(电)and running a factory create greenhouse gases(温室气体)that go into the air. These gases make Earth warmer. This is a problem for the Great Barrier Reef and other reefs around the world. Coral is very fragile(脆弱的). Even a 2­degree going up in water temperature is enough to kill it, according to Ove Hoegh­Guldberg, a reef researcher at the University of Queensland, Australia. 3.A But it's not only the coral that's in danger. One­quarter of all sea life lives on coral reefs. If air pollution is not slowed down or stopped, then the water will warm by at least 3 degrees in the next 20 years, according to reef experts in a recent report from the University of Queensland. 4.C A．If the water temperature doesn't go down, the coral will die. B．Unluckily, the reef that all these animals call home is in danger. C．This would mean the end for the Great Barrier Reef and all its sea life. D．But if you didn't go there before, you'd better go soon before it's too late. E．Most scientists agree that humans are the main reason of climate change. 二、完形填空。 Have you ever heard of Mount K2(乔戈里峰)? It is known as Savage Mountain because many people used to die or get hurt while 1 it. K2 is the second highest mountain in the world after Mount Qomolangma. People never climb Mount K2 in 2 . Both storms and cold weather make it 3 to climb this mountain during that time. K2 is famous as one of the most 4 mountains to climb. It is known by different 5 such as Chogori, Ketu and Mount Godwin­Austen. The name Chogori 6 “the king of mountains”. This mountain lies between the border of Pakistan and China. A part of the mountain lies in Pakistan. The other 7 of the mountain lies in Xinjiang, China. Thomas Montgomerie did the first survey of Mount K2 and measured(测量)its height. He named the 8 K2, where “K” stood for Kechu. K2 was the second mountain listed, so the name 9 the number “2”. The best time to climb K2 is between April and October. It 10 at least 3 weeks to complete the climbing. ( A )1.A.climbing B．walking C．swimming D．moving ( D )2.A.spring B．summer C．autumn D．winter ( B )3.A.important B．impossible C．silent D．amazing ( A )4.A.difficult B．easy C．interesting D．sleepy ( A )5.A.names B．places C．mountains D．trees ( D )6.A.listens B．shows C．calls D．means ( B )7.A.side B．part C．joy D．nature ( A )8.A.mountain B．people C．river D．protection ( B )9.A.completed B．included C．provided D．depended ( C )10.A.spends B．joins C．takes D．goes 三、语法填空。 The Antarctica(南极洲)is the most 1.southern(south)area of land on the earth and is mostly 2.covered(cover)with ice. People have never wanted to live there because of its coldest temperature. But now, 3.to learn(learn)more about the earth's history, scientists from all over the world come to study the ice. Some scientists live on Antarctica for part 4.of the year, but they don't usually stay there for more than six months because there are six months of light and six months of darkness. Antarctica usually has a good deal of fine weather 5.without any wind at all. The strong winds are usually only in some parts of it. It is also 6.interesting(interest)to learn that it isn't very wet there. There is very little snow 7.or rain. It snows on the ice in winter, but at other times Antarctica is dry, just like the Sahara Desert. In winter the sea around Antarctica freezes for thousands of kilometres. But scientists tell us that the earth is 8.getting(get)warmer. So in the future, there may be 9.less(little)ice in the Antarctic sea. When that 10.happens(happen), our weather will never be the same again. 四、阅读与表达。 (沈阳期中)Saihanba is a forest park in the north of Hebei. It is about 400 km from Beijing. For hundreds of years, the emperors went there to hunt. In the 1800s, things began to change. There were forest fires and wars, and people cut too many trees. Saihanba slowly turned into a desert. When the forest disappeared, there were terrible sandstorms in the Beijing area. In the early 1960s, a group of scientists travelled to Saihanba to find a solution. They found an old tree in the middle of the desert. “Maybe we can still plant trees here，” they thought. In 1962, the first tree planters arrived in Saihanba. The cold and dry weather made their work very difficult, and strong winds blew away many young trees. In winter, it got as cold as －40℃. Three generations(代)of forest workers continued the hard work. Thanks to them, Saihanba is green again. It is today the world's biggest man­made forest. There are hundreds of millions of trees there. The forest helps provide the capital with clean water, and there are fewer sandstorms in the Beijing area now. 1．What is Saihanba? A forest park(in the north of Hebei). 2．Who discovered an old tree in the desert at Saihanba? A group of scientists. 3．When did the first tree planters arrive in Saihanba? In 1962. 4．What do you think of the forest workers? Why? Write 20 words or more. I think forest workers are great. Because they overcame many difficulties and planted many trees. They made a huge contribution to the environment. People often think of the North Pole and the South Pole as similar frozen wastelands. They are both places with very cold temperatures and few people live there. However, the North and South Poles are not much alike as people may imagine. The North Pole has no land, only thick ice. Temperatures seldom go above 32℉(华氏温度), at which water turns into ice. Most of the time, it stays below zero. In winter temperatures are usually as low as －30℉. Although conditions were very poor, people tried for many centuries to reach the North Pole. About 100 years ago, two men, Robert Peary and Mathew Henson, were able to get to this environment full of troubles and difficulties. They reached the North Pole on 8th March, 1909.It was really a hard trip for them. There are few things more dangerous than crossing the Arctic(北极圈)on foot. People who stayed there may face many problems: very cold temperatures, sudden storms, and even hunger. Most of the area is uninhabited. Few people can live in such a difficult place. People might think that with such low temperatures for most of the year, the ice would be thick and hard. However, this is not true in the Arctic. The movement of the ocean water under the ice may often cause many different changes on the surface. Sometimes the ice breaks into two opening lanes of water(水道)called “leads”. Anyone who falls into a lead can be frozen to death in a few minutes. ( A )1.According to the passage, what happened about 100 years ago? A．Two men succeeded in getting to the North Pole. B．Temperatures in the North Pole went above 32℉. C．The environment in the North Pole suddenly became worse. D．The North Pole changed into thick ice because of the temperatures. ( D )2.What does the underlined word “uninhabited” mean in Chinese? A．气候恶劣的 B．充满危险的 C．困难重重的 D．无人居住的 ( D )3.Which is NOT the problem people face when staying in the North Pole? A．Sudden storms. B．Hunger. C．Very cold temperatures. D．Polar bears. ( C )4.What does this passage mainly talk about? A．The thick ice in the North Pole. B．A difficult trip to the North Pole. C．The real situation in the North Pole. D．The differences between the North Pole and the South Pole. 学科网（北京）股份有限公司 $