疯狂小发明教学内容课时活动名称活动目标1雨刮器摸索平行的运动 ，学习搭建复合的杠杆系统 2直升飞机(A Helicopter) 研究垂直升降， 简单理解力是怎样从水平转向垂直的。
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in a helicopter 乘直升机
fly a helicopter 坐直升飞机 ; 驾驶直升机
Like a helicopter overhead 如同在头顶经过的飞机 ; 如同在头顶盘旋的飞机 ; 像盘旋在头顶的飞机
a helicopter pilot 直升飞机驾驶员
a helicopter landing platform 直升机升降平台
a helicopter in hover 盘旋中的直升机
take a helicopter ride 乘直升机兜风
be a helicopter pilot 做一名直升飞机飞行员
a helicopter rotor 直升机旋翼
A helicopter crashed in a fiery explosion in Vallejo.
一架直升机在瓦列霍起火爆炸后坠毁了。
A helicopter landed in a clearing in the dense jungle.
一架直升机在茂密丛林中的一片空地着陆了。
A helicopter was scrambled to help rescue three young climbers.
直升机接到命令，紧急起飞前去营救三个登山的年轻人。
Within minutes, a helicopter lifted him from the spacecraft and carried him to a waiting ship.
VOA: special.2009.06.17
This powered parachute costs just $35 an hour to fly, compared to hundreds of dollars for a helicopter.
VOA: standard.2010.01.01
Terrorist suspect Saleh Ali Saleh Nabhan was killed in a helicopter assault Monday, according to Somali eyewitnesses.
VOA: standard.2009.09.15
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