完形填空，從每小題A、B、C、D四個選項中，選擇能填入相應空白處的最佳*。Weknowthattreesar...

問題詳情：

完形填空，從每小題A、B、C、D四個選項中，選擇能填入相應空白處的最佳*。

We know that trees are useful in our everyday life. They   1  us many things, such as wood, oxygen(氧氣), rubber(橡膠), medicines and many other things. They can   2   tell us a lot about our climate. The following are the reasons(原因). If you   3   a tree, you can see that it has many rings (年輪). Most trees grow one 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 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 very thin or suddenly very thick, this means that the   8  changed suddenly(突然). If we look at the rings of this tree, we can   9   about the climate for a hundred years. We can see  10   our climate is changing today.

(   ) 1. A. tell       B. ask        C. give          D. get   

(   ) 2. A. not       B. too        C. to            D. also

(   ) 3. A. cut down  B. climb up    C. walk past     D. look at

(   )4. A. many     B. every      C. some         D. only

(   ) 5. A. how big   B. how long   C. how old       D. how much

(   )6. A. trees     B. leaves     C. people       D. rings

(   ) 7. A. big      B. thin       C. things       D. small  

(   ) 8. A. climate   B. trees      C. sky         D. animal   

(   ) 9. A. study    B. get        C. learn        D. teach 

(   ) 10. A. how    B. why       C. when        D. while 

【回答】

1C  2D  3A  4B  5C  6D  7B  8A  9C  10A

知識點：記事類

題型：完型填空