物体在变力作用下由静止开始运动，如果变力F随时间t按图所示的情况变化，那么在0-

I am a journalist in America.When reporting a story，I sometimes need to find a ____ kind of person—someone who has recently switched banks，or who is ____ cancer，or who owns both a Chevy pickup and Toyota sedan.
At such moments，I ____ my brother Keith，a telecommunication worker in eastern Kansas.Usually he says，“I know just the guy.”
His contacts are so diverse in large part ____ he is offline.At age 52，he’s ____ sent an e­mail，surfed the Web or bought anything online.Without any mobile e­mail system to ____ his attention when he is shopping，he is ____ to make a friend or two before ____.Without Web pages to instruct him on his latest project—how to build a cow fence or how to fix a wood­burning stove—he seeks out the help of neighbours who have done it and follows their ____，and during beer­drinking time afterwards he listens carefully to their ____ of health problems，banking habits and new­car ____.
“I like talking to people，” he says.“I do not ____ nowadays people send each other e­mails instead of talking while they’re in the ___ room.”
My older brother ____ considers himself as an old­fashioned man and the Internet ____ are making him more so，too.As a(n) ____ to the Web，my brother belongs to one of the nation’s fastest­decreasing ____.
During the first half decade of the 21st century，the proportion of Internet users ____ slowly，to 59% of adult Americans from just over 50%，according to the Pew Internet and American Life Project.____ in the second half of the decade，that growth skyrocketed(猛升) and now nearly 80% of adult Americans use the Internet.At that pace，the offline Americans will no longer ____ in the coming decade.

小题1:	A．rich B．friendly C．brave D．particular

小题2:	A．battling B．avoiding C．curing D．developing

小题3:	A．appoint B．call C．miss D．search

小题4:	A．when B．until C．unless D．because

小题5:	A．ever B．frequently C．never D．seldom

小题6:	A．divide B．receive C．pay D．gain

小题7:	A．willing B．likely C．anxious D．clever

小题8:	A．settling down B．using up C．setting off D．checking out

小题9:	A．advice B．plan C．example D．gesture

小题10:

A．lesson B．speech C．talk D．lecture

小题11:

A．displays B．purchases C．exchanges D．repairs

小题12:

A．imagine B．predict C．understand D．recommend

小题13:

A．big B．new C．same D．special

小题14:

A．sometimes B．recently C．once D．always

小题15:

A．values B．trends C．techniques D．benefits

小题16:

A．stranger B．user C．owner D．beginner

小题17:

A．workers B．races C．minorities D．teams

小题18:

A．increased B．developed C．varied D．moved

小题19:

A．And B．So C．Or D．But

小题20:

A．change B．exist C．last D．work