/ 让学习更有效 新课备课备考 | 英语学科 / 让学习更有效 新课备课备考 | 英语学科 2025-2026学年八年级英语上册单元复习考点培优沪教版 （五四学制）（2024）Unit 3 Curious minds 专题13 任务型阅读 学校:_____姓名：_____班级：_____考号：_____ 阅读下列短文，根据所读内容，在表格空白处填入一个恰当的单词。 What Are Clouds A cloud is made of water drops or ice crystals floating (漂浮) in the sky. There are many kinds of clouds. Clouds are of great importance to Earth’s weather. The sky can be full of water. But most of the time you can’t see the water. The drops of water are too small to see. They have turned into a gas called water vapour (蒸汽). As the water vapour goes higher in the sky, the air goes cooler. The cooler air causes the water droplets (微滴) to start to stick to things such as bits of dust, ice or sea salt. Clouds get their names in two ways. One way is by where they are found in the sky. Some clouds are high up in the sky. Low clouds form closer to Earth’s surface. In fact, low clouds can even touch the ground. These clouds are called fog. Middle clouds are found between low and high clouds. Another way clouds are named is by their shape. Cirrus clouds (卷云) are high clouds. They look like feathers. Cumulus clouds (积云) are middle clouds. These clouds look like giant cotton balls in the sky. Stratus clouds (层云) are low clouds. They cover the sky like bed sheets. Most of the water in clouds is in very small droplets. The droplets are so light that they float in the air. Sometimes those droplets join with other droplets. Then they turn into larger drops. When that happens, gravity (重力) causes them to fall to the Earth. We call the falling water drops “rain”. When the air is colder, the water may form snowflakes instead. Freezing rain, sleet or even hail can fall from clouds. Clouds are important for many reasons. Rain and snow are two of those reasons. At night, clouds reflect (反射) heat and keep the ground warmer. During the day, clouds make shade that can keep us cooler. Studying clouds helps people have a better understanding of Earth’s weather. People use satellites (卫星) in space to study clouds. What Are Clouds Introduction Clouds are a(n) 1 part in Earth’s weather, such as rain and snow. Ways of forming clouds 2 drops of water turn into a gas called water vapour. As the water vapour 3 in the sky, the air goes cooler. The cooler air finally causes the small water drops to form clouds. 4 of clouds High clouds, middle clouds and low clouds are named by their 5 . According to their shape, clouds also have three names. Cirrus clouds look like feathers while stratus clouds 6 the sky like bed sheets. Those which look like giant cotton balls are called Cumulus clouds. Causes of rain Small and 7 droplets float in the air. If they join with each other, they will turn into larger drops, Gravity makes larger drops 8 to the Earth. Falling water drops are called “rain”. 9 for studying clouds Clouds can cause rain, snow and so on. Clouds ... ...
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