cheerfulnessisthebestpromoterofhealth.以下是小编为大家搜索整理的2023年PETS四级完形填空集训巩固练习，希望能给大家带来帮助!更多精彩内容请及时关注我们免下面是小编为大家整理的PETS四级完形填空集训巩固练习（完整文档）,供大家参考。

　　cheerfulness is the best promoter of health.以下是小编为大家搜索整理的2020年PETS四级完形填空集训巩固练习，希望能给大家带来帮助!更多精彩内容请及时关注我们!

　　Predictions of many robots in industry have yet come true.For ten years or more,manufacturers of big robots have explained how their machines can make industry more competitive and productive.The maker for _1__ robots is oversupplied now,and the driving force of the robotics revolution is _2__ to be with maker of machines that handle a few kilos at most.

　　"Heavy-robot manufacturers are in some difficulty __3_ finding customers.They are offering big __4_ just to get in the door.There has been a _5__ growth everywhere in the numbers of robots,so we admit we are either deceiving __6_ or that the market is slowly growing."said John Reekie,chairman of Colen Robotics."The following things must happen__7_ the robotics revolution to occur.We must achieve widespread robot literacy._8__ there has been a computer __9_ program,there must be a robot literacy program.__10_,some kind of artificial intelligence needs to be _11__.

　　Colen makes educational robots and machine tools.It is small _12__ with companies like ASEA or Fujitsu Fanuc. But Colen with others in departments in universities such as Surrey,Manchester,and Durham posses an advantage _13__ the giants.The big companies sell very expensive _14__ to businesses with expert knowledge in automation.The _15__ companies make robots for teaching people,and now they have realized that there is a need for small,__16_ robots that they can meet.

　　The little companies either bring their educational machines _17__ an industrial standard or design from the start.One technique that they all adopt is to choose __18_ components where possible.The major cost of making __19_ their models is the electronics,which will fall in price.There is _20__ scope for reductions in mechanical costs.The use of standard parts,which are easily replaced,should give these robots a mechanical life of something in the order of five years.

　　1 A small B educational C big D business

　　2 A claimed B called C thought D told

　　3 A to B with C over D in

　　4 A money B discounts C prices D costs

　　5 A exciting B encouraging C satisfying D disapointing

　　6 A ourselves B customers C companies D us

　　7 A to B for C in D with

　　8 A as if B even though C just as D although

　　9 A custom B literacy C poem D tradition

　　10 A however B finally C whereas D because

　　11 A capable B possible C probable D available

　　12 A compared B comparing C contrasted D contrasting

　　13 A than B above C over D from

　　14 A tools B robots C machines D electronics

　　15 A other B big C little D robot

　　16 A expensive B artificial C educational D low-cost

　　17 A up to B on C in D about

　　18 A mechanical B standard C cheap D small

　　19 A much B many C both D some

　　20 A more B less C no D least

　　参考答案：

　　1--5 CADBD

　　6--10 ABCBB

　　11--15 DACBC

　　16--20 DABCB