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U6 Welcome同步练习
限时40分钟
一、根据句意及首字母或汉语提示写出单词，使句子完整正确（共10小题）
1. The s______ of the lake is so smooth that it looks like a mirror.
2. After the earthquake, the g______ cracked in many places.
3. Farmers need rich l______ to grow healthy crops.
4. This road is very f______ and wide, perfect for cycling.
5. In winter, thick s______ covers the tops of the mountains.
6. The blue o______ is home to countless sea creatures.
7. These ancient r______ on the hill have been here for millions of years.
8. Many wild animals live deep in the f______, far from cities.
9. The hot d______ has almost no rain, so only cacti can survive.
10. The sun rises in the e______ every morning, bringing light to the world.
二、用所给单词的适当形式填空（共6小题）
1. The school bus ______ (carry) children to school every weekday.
2. This park has many ______ (nature) springs that never freeze in winter.
3. The ______ (beautiful) of the sunrise over the valley is beyond words.
4. Planting more trees helps keep the air ______ (clean).
5. What an ______ (amaze) view from the top of the mountain!
6. The wind came suddenly, ______ (cover) the picnic table with dust.
三、单项选择（共5小题）
1. About 71% of the earth’s surface is covered by ______.
A. forests B. deserts C. oceans D. ice
2. The hikers walked ______ a narrow path through the dense forest.
A. across B. through C. over D. into
3. After a light rain, the grass looked so ______ and green.
A. fresh B. flat C. dry D. simple
4. When winter comes, the whole playground ______ white snow.
A. is filled with B. is covered with C. is full with D. is put with
5. The sun ______ the east and sets in the west.
A. rises from B. rises in C. rises at D. rises on
四、根据汉语提示完成句子，每空一词（共5小题）
1. 我们可以在自然保护区找到地球上美丽的风景，那里有高山和清澈的湖泊。
We can find the earth’s beautiful landscapes in nature reserves, ______ there are high mountains and clear lakes.
2. 这条小河一路流向大海，穿过山谷和草地。
The small river ______ ______ the sea, going through valleys and grasslands.
3. 地球表面覆盖着不同类型的自然景观，如山脉、沙漠和森林。
The earth’s surface ______ ______ ______ different types of natural landscapes, such as mountains, deserts and forests.
4. 山体的自然坡度有助于将雨水带到下面的河流中。
The natural slope of the mountain helps ______ rainwater ______ down to the river below.
5. 尽管是沙漠，这里仍然有一些耐旱的植物。
______ it is a desert, there are still some drought-resistant plants here.
五、完形填空（共10小题）
阅读下面短文，从各题所给的四个选项中选出一个最佳答案。
Have you ever heard of the “Painted Hills” in the USA It is a amazing natural wonder. The hills ______ in Oregon and are famous for their colourful layers (岩层). As the name ______, the hills show colours like red, gold, black and green.
Why do the hills have so many ______ The answer is the different rock layers formed millions of years ago. Each layer ______ a different time period. When the sun shines, the colours become even brighter. ______ you plan to visit, try to go in late spring or early autumn. At those times, the weather is pleasant and the light is soft.
To get there, you need to drive to the park first. Then you can ______ a short walk to the viewpoints. The walk is not very difficult, ______ the hills are not too high. However, there is little shade (阴凉处), so you ______ bring a hat and enough water. The best time to take photos is in the late afternoon ______ the sun is low. At that time, the colours look the richest.
Visiting the Painted Hills is a wonderful ______. You will feel like you are walking in a painting.
( ) 1. A. lie B. live C. hold D. stand
( ) 2. A. tells B. says C. suggests D. means
( ) 3. A. places B. shapes C. colours D. sizes
( ) 4. A. records B. represents C. reviews D. remembers
( ) 5. A. Unless B. Although C. Until D. If
( ) 6. A. end B. start C. take D. cover
( ) 7. A. so B. because C. but D. or
( ) 8. A. may B. must C. need D. should
( ) 9. A. when B. where C. how D. why
( ) 10. A. view B. trip C. experience D. lesson
六、阅读理解（共5小题）
阅读下面短文，根据内容选择最佳答案。
The Amazon Rainforest in South America is the largest rainforest on Earth. It covers about 5.5 million square kilometres. That’s almost half of the world’s remaining rainforests. The Amazon is home to millions of kinds of animals, plants, and insects. Many of them cannot be found anywhere else.
The rainforest is often called “the lungs of the Earth” because its trees take in carbon dioxide (二氧化碳) and give out oxygen. This helps keep our air clean and slows down climate change. However, large areas of the Amazon are being cut down for farming and building. Every year, thousands of square kilometres disappear.
Scientists warn that if we lose the Amazon, we will lose not only animals and plants but also a key defence against global warming. Many countries are now working together to protect the rainforest. Small actions like using less paper and planting trees can also help.
( ) 1. Where is the Amazon Rainforest
A. In Africa. B. In South America. C. In Asia. D. In North America.
( ) 2. Why is the Amazon called “the lungs of the Earth”
A. Because it produces a lot of food.
B. Because it gives out carbon dioxide.
C. Because it takes in oxygen and gives out carbon dioxide.
D. Because it takes in carbon dioxide and gives out oxygen.
( ) 3. What is causing the Amazon to disappear
A. Too many animals. B. Natural fires.
C. Cutting down trees for farming and building. D. Too much rain.
( ) 4. What might happen if we lose the Amazon
A. The earth will get cooler. B. Global warming may become worse.
C. There will be more oxygen. D. Animals will have more space.
( ) 5. Which of the following actions can help protect the Amazon
A. Using more paper. B. Planting more trees.
C. Building more farms in the forest. D. Cutting down trees for wood.
参考答案
一、单词拼写
1. surface 2. ground 3. land 4. flat 5. snow
6. ocean 7. rocks 8. forest 9. desert 10. east
二、适当形式填空
1. carries 2. natural 3. beauty 4. clean 5. amazing 6. covering
三、单项选择
1. C 2. B 3. A 4. B 5. A
四、完成句子
1. where 2. runs to 3. is covered with 4. carry; bring 5. Although
五、完形填空
1. A 2. C 3. C 4. B 5. D
6. C 7. B 8. D 9. A 10. C
六、阅读理解
1. B 2. D 3. C 4. B 5. B

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