1. [单选题]2． When do you go shopping?‘I usually go shopping _________ Sunday mornings ．
A. on
B. in
C. at
D. by
2. [单选题]2007年世界气象日的主题是“极地气象：认识全球影响”。当前两极地区的冰层正在不断变薄，其原因可能是
A. 全球气候变暖
B. 两极地区降水减少
C. 两极地区陆地增厚
D. 两极地区风速增大
3. [单选题]（B）ArecentreportfromDazhouDailysaysabout18%ofDazhouteenagerscanhaveproblemswiththeirminds（内心，精神）.Somestudentsbecomeworriedbecausetheyhavetostudyveryhard.Othershavetroublegettingonwellwith
A. peopleliketheirparentsandclassmates.
B. ZhangQiang,aJunior2studentfromDazhou,couldnotunderstandhisteachersinclassandwasdoingbadlyinhis
C. lessons.Hewasafraidofexams.Whenhelookedattheexampaper,hecouldn’tthinkofanythingtowrite.
D. Anotherstudent,a15-year-oldgirlcalledWuYanfromGuang’anoftenarguedwithherclassmatesevenherparentsbecauseofsomedifferentideas.Shebecamesoannoyed
E. aboutthemthatshestartedtocutherfingerwithaknife.
F. However,manystudentswhohaveproblemswon’tgoforadviceorhelp.Somethinktheywilllookstupid（愚蠢的）iftheygotoseeadoctor.Othersdon’twanttotalkabouttheirsecrets.Inordertosolvetheteenagers’problems,hereissomeadvice:
G. ●Talktoyourparentsorteachersoften.
H. ●Takepartingroupactivitiesandplaysports.
I. ●Gotoseeadoctorifyoufeelunhappyorunwell.
J. 51.Itisreportedthat_______studentsinDazhoucanhaveproblemswiththeirminds.
K. most
L. many
M. some
N. allthe
