Unit 6 Beautiful landscapes Welcome to the unit 同步练习（含答案）

Unit 6 Welcome to the unit 同步练习 基础巩固 一、词汇运用 A. 根据句意及首字母提示完成单词。 1. The m_____ are very high and dangerous. 2. The forest is a beautiful and peaceful p_____. 3. Oceans c_____ a large area of the earth. 4. The d_____ is very dry and there is little water. 5. The plain is very f_____ and you can see far away. B. 用所给单词的适当形式填空。 1. Two thirds of the earth's surface _____ (be) covered by water. 2. The Yangtze River is one of the longest _____ (river) in the world. 3. Forests help to keep the air _____ (clean). 4. It's very cold in the desert at _____ (night). 5. These mountains are usually _____ (cover) with snow. 二、单项选择 1. —_____ do you know about deserts —They are very dry and hot. A. What B. How C. Where D. When 2. The river _____ from the mountains and runs into the sea. A. rises B. raises C. gets D. goes 3. —Which landscape do you like best —I like _____ best. A. mountains B. deserts C. plains D. forests 4. Oceans cover about _____ of the earth's surface. A. three fourths B. three quarter C. three quarters D. third four 5. —How long is the Yangtze River —It's about 6,300 kilometres _____. A. wide B. deep C. long D. high 能力提升 三、句型转换 1. Forests help make the air clean. (改为同义句) Forests help _____ the air _____. 2. Deserts are often hot during the day but cold at night. (对划线部分提问) _____ _____ deserts often like during the day and at night 3. Rivers carry water from high ground down to lakes or the sea. (对划线部分提问) _____ _____ rivers carry water 4. Mountains are high and they are usually covered with rocks and snow. (改为一般疑问句) _____ mountains high and _____ they usually covered with rocks and snow 5. Plains are open and flat. They cover over one third of the world's land area. (合并为一句) _____ 拓展延伸 四、阅读理解 A There are many different landscapes in the world. Mountains are one of them. They are very high and beautiful. Some mountains have snow on the top all year round. Oceans are very large. They cover more than two-thirds of the earth's surface. The water in the oceans is salty. There are many kinds of fish and other living things in the oceans. Deserts are very dry. There is little rain in deserts. It is very hot during the day and very cold at night. Forests are full of trees and other plants. They help to make the air clean and fresh. Rivers carry water from high places to low places. Some rivers are very long, like the Yangtze River and the Amazon River. Plains are large areas of flat land. They are often used for farming. 根据短文内容，判断下列句子正（T）误（F）。 ( ) 1. Mountains are not beautiful. ( ) 2. Oceans cover less than half of the earth's surface. ( ) 3. It is very cold in deserts at night. ( ) 4. Forests can make the air clean. ( ) 5. Plains are not good for farming. B Different landscapes have different features. Mountains are usually high and have rocks and snow. Some people like climbing mountains because it's a great challenge. Oceans are ... ...