float / fləʊt / vi. 浮动;源流;源浮；vt使浮动;使漂流【人教版高中英语必修三 unit 4 （单词与全书例句）】

 float 
/ fləʊt / 
vi.   浮动;源流;源浮；vt使浮动;使漂流
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1. While sleeping, they must attach themselves to something so as to prevent floating around.

2. The woman standing in front of the float is one of the most famous samba dancers in Brazil.

3. During the carnival, there was a street parade of floats moving in flowers.

4. The astronauts had many tasks to do in space as part of their mission. Firstly, they had to float through a narrow 80-centimetre wide tube so as to get on board Tiangong 2.

5. Astronauts have to use tape to stick everything down while working in space because everything would float off otherwise.

6. Astronauts have to use tape to stick everything down while working in space in order to / so as to avoid everything floating off.

7. What do they do so as not to float around while they sleep?

1. 睡觉时，他们必须把自己固定在某物上，以免飘来飘去。

2. 站在花车前的那位女士是巴西最著名的桑巴舞者之一。

3. 狂欢节期间，有花车在花丛中游行。

4. 宇航员在太空中执行任务时有很多任务。首先，他们必须漂浮在一个80厘米宽的狭窄管道中，才能登上天宫二号。

5. 宇航员在太空工作时必须用胶带把所有东西粘住，否则所有东西都会飘走。

6. 宇航员在太空工作时必须用胶带把所有东西粘住，以避免所有东西飘走。

7. 他们睡觉时做什么才能不飘走？