Unit4 The Earth单元语法填空专项训练-2025-2026学年沪教版七年级上册英语

沪教版七年级上册英语Unit4 The Earth单元语法填空专项训练 阅读下面短文，在空白处填入括号内单词的正确形式。 （一）The Earth - Our Amazing Home The Earth 1.______ (be) an amazing planet. It 2.______ (be) about 4.5 billion years old and 3.______ (travel) around the Sun. As far as we 4.______ (know), it is the only planet in the solar system that 5.______ (support) life. About 70% of the Earth 6.______ (cover) by water. The green and brown parts 7.______ (be) land. There are white 8.______ (cloud) above the ground. Some places on Earth are very hot, like the areas near the equator. Others are 9.______ (freeze) cold, such as the North and South Poles. There 10.______ (be) fields, mountains, rivers, seas, forests and deserts on it. The highest mountain on Earth 11.______ (be) over 8,800 metres above sea level, and the deepest part of the sea 12.______ (be) more than 10,000 metres down. The plants on Earth 13.______ (be) wonderful in many different ways. The tallest trees in the world 14.______ (can reach) over 100 metres in height, while the smallest plant 15.______ (be) as small as a grain of rice. The Earth 16.______ (be) home to millions of animals. Some, like tigers and lions, 17.______ (live) on land. Others, like birds, 18.______ (enjoy) the wide open sky. Big blue whales 19.______ (call) the sea home, along with many amazing fish. From bears to birds, from butterflies to seahorses, animals 20.______ (make) our planet lovely and interesting. What's more, the Earth 21.______ (provide) us with all the things we need, such as food, water, air and energy. It 22.______ (be) our home, so we should explore, learn about and take good care of it. （二）The Importance of the Sea The sea 23.______ (be) very important to the Earth. It 24.______ (cover) a large part of our planet. The sea 25.______ (be) home to many different kinds of animals and plants. There 26.______ (be) colorful fish, huge whales, strange seaweeds and many other amazing creatures living in it. The sea also 27.______ (play) a key role in regulating the Earth's climate. It 28.______ (absorb) a large amount of heat from the Sun and 29.______ (help) distribute heat around the world. Without the sea, the climate on Earth 30.______ (be) much more extreme. Moreover, the sea 31.______ (provide) us with many resources. We 32.______ (get) fish and other seafood from it, which 33.______ (be) important parts of our diet. It 34.______ (also supply) us with salt and other minerals. However, the sea 35.______ (face) many problems now. Plastic pollution 36.______ (become) a serious issue. Every year, a large amount of plastic 37.______ (end) up in the sea. This 38.______ (harm) the sea animals. They 39.______ (mistake) the plastic for food and 40.______ (get) sick or even die. Over - fishing 41.______ (be) another problem. If we 42.______ (not stop) over - fishing, there 43.______ (be) fewer and fewer fish in the sea in the future. We must take action to protect the sea. We 44.______ (should reduce) plastic use, and 45.______ (support) sustainable fishing practices. Only in this way can we keep the sea healthy and beautiful. （三）Problems the Earth is Facing The Earth 46.______ (face) many serious problems nowadays. One of the biggest problems 47.______ (be) air pollution. Factories 48.______ (release) a large amount of harmful gases into the air every day. Cars and trucks 49.______ (also produce) a lot of pollutants. These gases and pollutants 50.______ (make) the air dirty and harmful to our health. People 51.______ (get) sick easily because of the polluted air. Another problem is water pollution. People 52.______ (dump) waste into rivers, lakes and the sea. Chemicals from factories 53.______ (flow) into the water sources. As a result, the water 54.______ (become) dirty and unfit for drinking. Many sea animals 55.______ (die) because of the polluted water. Deforestation 56.______ (be) also a serious issue. People 57.______ (cut) down a large number of trees for wood and to make space for buildings and farms. Without enough trees, soil erosion 58.______ (happen) easily. The loss of forests 59.______ (also affect) the habitats of many animals, causing some species 60.______ (be) in danger of extinction. In addition, the Earth 61.______ (experience) global warming. The increase in greenhouse gases 62.______ (trap) more heat in the atmosphere, leading to rising temperatures. This 63.______ (result) in the melting of glaciers and the rise of sea levels. If sea levels 64.______ (continue) to rise, some low - lying areas 65.______ (be) flooded in the future. （四）Ways to Protect the Earth To protect the Earth, we 66.______ (need) to take action. First, we 67.______ (should reduce) our energy consumption. We can turn off lights when we 68.______ (leave) a room and use energy - saving appliances. Using public transportation, cycling or walking instead of driving cars 69.______ (help) reduce energy use and air pollution. Second, we 70.______ (must cut down) on waste. We should recycle paper, plastic, glass and metal. Recycling 71.______ (save) resources and reduces the amount of waste sent to landfills. We can also 72.______ (reuse) things like shopping bags and water bottles. Protecting forests is very important. We 73.______ (shouldn't cut down) too many trees. Instead, we can plant more trees. Trees 74.______ (absorb) carbon dioxide and release oxygen, which 75.______ (help) improve the air quality. Reducing plastic use is crucial. We 76.______ (should use) fewer plastic bags, straws and disposable plastic products. Using cloth bags and reusable straws 77.______ (be) good alternatives. Finally, we 78.______ (need to raise) awareness about environmental protection. We can educate others about the importance of protecting the Earth and encourage them 79.______ (take) action. By working together, we 80.______ (can make) a difference and ensure a better future for our planet. （五）The Earth in the Solar System The Earth 81.______ (be) one of the eight planets in the solar system. The solar system 82.______ (include) the Sun, the planets and their moons, as well as asteroids and comets. The Sun 83.______ (be) at the center of the solar system, and the planets 84.______ (orbit) around it. Compared with other planets, the Earth 85.______ (have) some unique features. It 86.______ (have) the right distance from the Sun, which 87.______ (make) the temperature on Earth suitable for life. It 88.______ (also have) a thick atmosphere that 89.______ (protects) us from harmful radiation from space and helps keep the Earth warm. The Moon 90.______ (be) the Earth's only natural satellite. It 91.______ (orbit) around the Earth and 92.______ (affect) the tides of the sea. The gravitational pull between the Earth and the Moon 93.______ (be) very important for the stability of the Earth's rotation. Scientists 94.______ (always explore) the solar system to learn more about the Earth and other planets. Through their research, we 95.______ (get) a better understanding of the formation and evolution of the solar system. This knowledge 96.______ (help) us protect the Earth and may even 97.______ (lead) to the discovery of new resources in space in the future. We 98.______ (should cherish) the Earth and work hard 99.______ (protect) it. After all, it 100.______ (be) our only home in the vast universe. 答案 1. is 1. is 1. travels 1. know 1. supports 1. is covered 1. are 1. clouds 1. freezing 1. are 1. is 1. is 1. are 1. can reach 1. is 1. is 1. live 1. enjoy 1. call 1. make 1. provides 1. is 1. is 1. covers 1. is 1. are 1. plays 1. absorbs 1. helps 1. would be 1. provides 1. get 1. are 1. also supplies 1. is facing 1. has become 1. ends 1. harms 1. mistake 1. get 1. is 1. don't stop 1. will be 1. should reduce 1. support 1. is facing 1. is 1. release 1. also produce 1. make 1. get 1. dump 1. flow 1. becomes 1. die 1. is 1. cut 1. happens 1. also affects 1. to be 1. is experiencing 1. traps 1. results 1. continue 1. will be 1. need 1. should reduce 1. leave 1. helps 1. must cut down 1. saves 1. reuse 1. shouldn't cut down 1. absorb 1. helps 1. should use 1. are 1. need to raise 1. to take 1. can make 1. is 1. includes 1. is 1. orbit 1. has 1. has 1. makes 1. also has 1. protects 1. is 1. orbits 1. affects 1. is 1. are always exploring 1. get 1. helps 1. lead 1. should cherish 1. to protect 1. is 学科网（北京）股份有限公司 $$