文本内容:
Unit6When wasit inventedSectionB2c—Self CheckI.根据句意及括号内所给动词的提示填空
1.These bridgesrepairby theworkers lastmonth.
2.Maryhear tosing thesong inthe roomlast night.
3.Th issweaterwash byLucy yesterdaymorni ng
5.The bikeride tothe zooby himyesterday,become,popular,feed,call,rapidThe firstbike appearedover200years ago.People1it“the horseon wheels”.Later,the bikebecame very
2.People likedbikes becausethey werenot asexpensive ashorses.They wouldnthave tobuild aspecial housefbr themor3them.And then,trains,ships andairplanes beganto appeararound the world.Transportation运输工具between cities arou ndtheworldbecame moreconvenient and
4.Now manycitiesnot onlyhave alot ofpublic transportation suchas busesandtaxis,but theyalso havemanycars andother privatetransportation.The worldis5smaller andsmaller.If youtakea planefrom.Beijing toNew YorkCity,it onlytakes youabout thirteenhours.I.
1.were repaired
2.was heard
3.was washed
4.wer etaken
5..was riddenII.
1.called
2.popular
3.feed
4.rapid
5.becoming。