问题 选择题

下列关于自由落体运动的说法,正确的是:

A.初速度为零的竖直向下的运动就是自由落体运动

B.只在重力作用下的竖直向下的运动就是自由落体运动

C.雨滴下落的过程可看做自由落体运动

D.在月球上做铁球与羽毛自由下落的实验,两者下落一样快

答案

答案:D

只在重力作用下的初速度为零的竖直向下的运动就是自由落体运动,AB错,雨滴下落空气阻力不能忽略所以不能看做自由落体,C错;在月球上空气阻力忽略,做铁球与羽毛自由下落的实验,两者下落一样快,D对。

阅读理解

The London Eye

The London Eye was opened on New Year’s Eve in 1999 to celebrate the Millennium (千禧年). It is 135 meters high, and from the top you can see the whote London. On a clear day you can even see Windsor Castle, which is 40 kilometers away. The London Eye has 32 capsules (密封舱), each with room for 25 people. Each “trip” lasts 30 minutes. It moves quite slowly, at a speed of about 15 meters a minute, but it never stops. Passengers have to get on when it’s moving.

OPENING TIME: Daily from 9 a.m. to 10 p.m. in summer and from 10 a.m. to 6 p.m. in winter.

TICKETS: Online or by phone. A limited number of tickets are available (可获得的) in the day.From the Ticket Office in County Hall (the building next to the Eye), but go early because you often have to wait in a queue.

HOW TO GET THERE: 5 minutes’ walk from Waterloo underground station.

Choose the best answers:

小题1:The London Eye was built for celebrating __

A.New Year’s Eve

B.1999

C.foreign visitors

D.the Millennium小题2:On sunny day from the top of the London Eye you can see __--

A.all of England

B.Windsor Castle

C.all the buildings which are 40 kilometers away

D.the building that is 135 meters high小题3:There are_____  passengers in the London Eye when it’s full.

A.32

B.800

C.25

D.72小题4:The opening time of the London Eye in summer is _that in the winter.

A.shorter than

B.the same as

C.as many as

D.longer than小题5:People_____  get tickets from the Ticket Office because tickets there are limited.

A.can usually

B.can never

C.can’t always

D.walk from Waterloo underground station to

填空题