Where were dominoes （多米诺骨牌） from？ Modern dominoes first showed up in Italy during the 18th century． But it is believed that the earliest dominoes were Chinese playing cards． Italian missionaries（传教士） in China may have brought the game to Europe． Do you think so？

Do you like to play with dominoes？ Dominoes are small rectangular （长方形的） pieces made of wood or plastic （塑料）． People can place dominoes in different shapes． Then， they push one domino down and the rest of the dominoes fall one by one． It is interesting to watch．

But placing dominoes is hard． To make sure the dominoes fall smoothly， the space between each domino is important． According to domino play．com， if a domino is about 4cm long， then the space between two dominoes should be 1﹣2 cm． If the space is too big， the dominoes will stop falling halfway． If the space is loo small， the dominoes will fall too quickly and won't look interesting．

Beginners can start by putting dominoes in a straight line． This is the easiest shape． Professional （专业的） players can place dominoes in many other shapes， including big circles， beautiful flowers and even famous paintings． In March， a US team broke the Guinness World Record （吉尼斯世界记录） for the most dominoes to fall in a circle． They used 250，000 dominoes! It is really unbelievable．

（1）Modem dominoes first appeared in 　　during the 18th century．

A．	China	B．
C．	Italy	D．
E．	the U．S．	F．
G．	the U．	H．

（2）Some dominoes are made of 　　．

A．	wood
B．	silk
C．	gold
D．	steel

（3）If a domino is about 4 cm long， the space between two dominoes may be 　　．

A．	less than 1 cm
B．	more than 2 cm
C．	about 1.5 cm
D．	about 4 cm

（4）It's interesting to watch dominoes falling 　　．

A．	halfway
B．	together
C．	too quickly
D．	one by one

（5）Dominoes are usually put in the shape of 　　by beginners．

A．	straight lines
B．	big circles
C．	beautiful flowers
D．	famous paintings