從方框中選擇正確的單詞並用其適當形式填空　able，alien，circle，express，mightmys...

問題詳情：

從方框中選擇正確的單詞並用其適當形式填空

able，alien，circle，express，might

mystery，outdoors，purpose，see，valuable

crop circles(麥田怪圈)are patterns in fields that appear first they were just some simple 1.       ，now the patterns have become very complicated(複雜的)．From a plane crop circles can look like a work of art 2.     ．

Since the first crop circles were found in Britain in 1978，it has become a great 3.     ．How these crop circles are made？Who makes them？What is the 4.      of making them?

Some scientists think that some of the crop circles 5.     be man­ believe that thanks to modern technology，it is possible to create such complicated patterns in a short time.

However，others think that crop circles might be the work of some 6.    ．Because they often apper in areas shortly after there have been UFOs to be 7.    ．They also think that the circles are so complicated that nobody on earth is 8.      to make a true crop circle.

Although different opinions about these crop circles have been 9.      ，one thing everybody agrees is these crop circles are 10.      to the local economy(經濟)．Thousands of visitors come here to see crop circles every year.

【回答】

les oors．ery．ose

t ns．．

essed able

知識點：短文填空

題型：閲讀填空