StandinginlineforthelatestiPhoneattheApplestore，queuingforticketstoWimbledonorevenjustwaitingatthepostofficemightjusthavegotaloteasier.Japanesecar-makerNissanannouncesthatithasjustthethingtorelievethepainfullegsoftiredqueuers.

Thenewsystemof&lsquoself-driving&rsquochairsisdesignedtodetectwhensomeoneatthefrontofthequeueiscalled，andautomaticallymoveeveryoneelseonestepforwardinline.Thenewinventionisshownoffinacompanyvideo，whichshowsabusyrestaurantwithpatronswaitingoutside.

Inthevideo，dinersaresittinginarowofchairs，butwillnothavetostandwhenthenexthungrydineriscalledtoatable.Instead，thechairs，equippedwithautonomoustechnologythatdetectstheseatahead，movealongapathtowardthefrontoftheline.Whenthepersonatthefrontofthequeueiscalled，theemptychairatthefrontcansenseitisemptyandsomovesoutofpoleposition.Camerasontheremainingchairsthensensethemovementandfollowautomatically.

Thesystem，whichissimilartothekindusedinNissan'sautonomousvehicletechnology，willbetestedatselectrestaurantsinJapanthisyear，Nissansaid.Itappealstoanyonewhohasqueuedforhoursoutsideacrowdedrestaurant:iteliminatestheboredomandphysicalpainofstandinginline，Nissanadded.

AlthoughTokyohassome160，000restaurants，longqueuesarenotuncommon.Chosenrestaurantsthatmeetthecriteriawillbeabletoshowthechairsoutsidetheirrestaurantnextyear.Nissanalsoreleasedashortvideoshowingthechairsbeingusedinanartgallery，movingslowlyinfrontofthevariouspaintingstoletviewersappreciatetheartwithouttheneedtostandup.

1.Whatcanweknowaboutself-drivingchairsfromthetext?

A.TheyareinhotdemandlikeiPhones.

B.Theyareintendedforqueuingdiners.

C.Theyaretheinventionsofacarcompany.

D.Theyarecompletelydifferentfromvehicletechnology.

2.Whichenablesthechairstodetecttheseatahead?

A.Poleposition.

B.Autonomoustechnology.

C.Cameraequippedonthem.

D.Sensorsequippedalongthepath.

3.WhichofthefollowingcanreplacetheunderlinedwordeliminatesinParagraph4?

A.rids.B.ignores.C.steals.D.hides.

4.Whatcanbeinferredfromthelasttwoparagraphs?

A.QueuingisararesceneoutsideJapaneserestaurants.

B.Self-drivingchairsarethemostusefulinartgalleries.

C.Japanesepeopleprefereatinginrestaurantstoathome.

D.Self-drivingchairshaven&rsquotbeeninofficialuseinrestaurants.

正确答案：1.C2.B3.A4.D

答案解析：

文章介绍了能消除长时间排队带来的无聊和身体上痛苦的一种新型发明装置自驱椅及其具体使用。