73. It’s important for us students to study the 　h_______ of our country.

72. He is not old enough to support himself. He has to d_________ on his parents.

71. A q_______ is another way of saying fifteen minutes.

　 用方框中所给单词的适当形式填空，使短文通顺、正确、连贯(每个单词限用一次)。

We know that trees are useful in our everyday life. They 61____ us many things, such as wood, oxygen, rubber, medicines and many other 62_______. They can also tell us a lot about our climate. The 63_____ are the reasons. If you cut down a tree, you can see that it has many rings. Most trees grow one new ring every year. Because of this reason, we know how64 _____ a tree is. A tree over a hundred years old 65______ that it has more than a hundred　 66______. When the climate is dry or very cold, the trees do not grow very much and their rings are usually67 _____. When it is wet or warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the climate changed suddenly. If we look at the rings on this tree, we can 68____ about the climate for a hundred 69_____. We can see 70____ our climate is changing today.

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30.-- Could you tell me how to get to the railway station, please?

　 -- ______.

A. No, I couldn’t　　　　　　　　 　B. Don’t ask me

C. Thank you all the same　　　　　 　　D. Certainly. You can take the No. 1 bus

-----16，17，20，22，25，27，30改编于上海市，河南市，丽水市08中考题

18，19，21，23，24，26，28，29原创