高一英语unitone-unittwo,单项选择,要解析
17.Asaresultofdestroyingtheforests,alarge()ofdesert()coveredtheland.
A.number,hasB.quantity,hasCnumber,haveDquantity,have
18.Theyhadapleasantchat()acupofcoffee
A.forB.withC.duringD.over
19.Somestudentsoftenlistentomusic()classestorefreshthemsleves
A.betweenB.amongC.overD.during
20.—Whatareyoumailing,Ryan?—Atextbook()anewmethodofteachingphysics.Iwantmyfriendstotakealoodatit.
A.isbasedonB.basedonC.basingDwhichbasedupon
21.Chinais___theweatofJapanbutitislies___theeastofAisa
A.in,toB.to,fromC.in,onD.to,in