题目列表(包括答案和解析)
4. A. by B. with C. use D. have
3. A. but B. so C. and D. as
2. A. five thousands B. five thousand of C. four thousand D. five thousand
1. A. youngest B. biggest C. oldest D. smallest
16. We have never seen _____ exciting match.
A. such B. so C. such an D. so an
完型填空
A pine tree in California was thought to be the 1_ tree in the world. People thought it was nearly 2 years old, 3 they could not be sure. Then someone cut the tree down 4 a chain saw. Killing the oldest tree in the world was a 5 thing to do. But __6 the tree was cut down, everyone knew 7 _ age. It was 4,900 years old.
How can you 8 the age of a tree? If you ever see a tree that has just been cut down, 9 a look at the cut part. You will see 10 . There are little rings in the middle. Around each ring is a 11 ring. The ring near the bark(树皮) is 12 _ one of all.
Count these rings. A tree grows one ring 13 . A ten-year-old tree has ten rings. A 14 tree has sixty rings. 15 rings does a 4,900-year-old tree have?
15. He read it to me _____ I could understand it.
A. so as B. so that C. because D. for
14. It was hard to work _____ the Great Green Wall.
A. in B. at C. up D. on
13. I will spend as much time as I can _____ speaking English.
A. practicing B. to practise C. practise D. practiced
12. Man can’t live _____ air _____ water.
A. with, and B. with, or C. without, and D. without, or
11. Why should trees _____ in spring every year?
A. plant B. be planted C. are planted D. to plant
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