问题 填空题

如图所示,容器AB内盛有液面相平的清水,两容器以斜管相连通,斜管带有相当于开关的阀门K,当阀门K打开时,水将            (选填:“会”或“不会”)流动。

答案

不会;

如图,当阀门打开时,A和B的上端开口底部连通,是连通器.

容器内装水,液面相平,打开阀门,容器是连通器,液面也相平,所以水不会流动.

阅读理解

Metrorall (地铁)

Each passenger needs a farecard to enter and go out .Up to two children under age five may travel

Free with a paying customer .

Farecard machines are in every station .Bring small bills because there are no change machines in the stations and farecard machines only provide up to $5 in change.

Get one ticket of unlimited Metrorall rides with a One Day Pass .Buy it from a farecard machine in Metro stations .Use it after 9:30 a,m. until closing on weekdays , and all day on weekends and holidays .

Hours of service

Open 5am  Mon-Fri             7a.m  Sat-Sun

Open midnight Sun-Thur.

Last train times vary .

Train times Posted in stations

Metrobus 

When paying with exact charge , the fare is $1.35.When paying with a SmarTripⓇcard , the fare is

1.25.

Fares

Senior citizens 65 and older and disabled customers may ride for half the regular fare .On Metrorail and Metrobus , use a senior/disabled farecard or Smar/Trip Ⓡcard .For more information about buying senior .disabled farecard , SmarTripⓇcards and passes , please visit MetroOpensDoors .com or call 202-637-7000and 202-637-8000.

Senior citizens and disabled customers can get free guide on how to use proper Metrobus and Metrorall services by calling 202-962-1100.

Travel tips (提示)

. Avoid riding during weekday rush periods –before 9:30 a.m. and between 4and 6p.m.

. If you lose something on a bus or train or in a station, please call Lost &Found at 202-962-1195,

小题1:What should you know about farecard machines?

A.They start selling tickets at 9:30 a.m.

B.They are connected to change machines .

C.They offer special service to the elderly .

D.They make change for no more than $5.小题2:At what time does Metroarll stop service on Saturday ?

A.At midnight .

B.At 3 a.m.

C.At 5 a.m.

D.At 7a.m.小题3:What is good about a SmarTripⓇcard ?

A. It is convenient for old people .

B. It saves money for its users

C It can be bought at any train

D. It is sold on the Internet

小题4:Which number should you call if you lose something on the Metro?

A.202-962-1195

B.202-962-1100

C.202-637-7000

D.202-637-8000

问答题 简答题