完形填空。 We know that tree
来源:学生作业帮 编辑:百度作业网作业帮 分类:英语作业 时间:2024/06/25 02:38:51
完形填空。 |
We know that trees are useful in our everyday life. They 1 us many things, such as wood, rubber, medicine and many other things. They can 2 tell us a lot about our climate (气候). If you 3 a tree, you can see that it has many rings (年轮). Most trees get a new ring 4 year. Because of this reason, we know 5 a tree is. A tree over a hundred years old means that it has more than a hundred 6 . When the climate is dry or very cold, the trees do not grow very much and their rings are usually 7 . When it is wet and warm, the rings are much thicker. If the rings are suddenly (突然地) very thin or very thick, this means that the 8 changed suddenly. If we look at the rings on this tree, we can learn 9 the climate for a hundred years. And we can see 10 our climate is changing today. |
![完形填空。 We know that tree](/uploads/image/z/18007341-69-1.jpg?t=%E5%AE%8C%E5%BD%A2%E5%A1%AB%E7%A9%BA%E3%80%82+%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B+We+know+that+tree)
1-5: C D A B C 6-10: D B A A C