短文填词 Balloons have been used for sports for one hundred years．There are two k 1

短文填词

Balloons have been used for sports for one hundred years．There are two k1of sports balloons：gas and hot air．Hot air balloons are less risky than gas ones, 2may catch fire．Hot air balloons are3(更喜欢)by most balloonists in the Word because of their 4(安全)．They're also cheaper and e5 to manage than gas ones．The best time to fly sports balloons is early in the morning or late in the a6 with the wind carrying it．Some balloonists tried to 7 the Atlantic Ocean over the years, but they all failed．Not81978 did three Americans 9(成功)．It took them just six days to make their t10 from their home in the USA to Paris, France．

1．________

2．________

3．________

4．________

5．________

6．________

7．________

8．________

9．________

10．________

试题答案

答案：

1．kinds

2．which

3．preferred

4．safety

5．easier

6．afternoon

7．cross

8．until

9．succeed

10．trip