Californiaisalandofvarietyandcontrast.Almosteverytypeofphysicallandfeature，sortofarcticicefieldsandtropicaljunglescanbefoundwithinitsborders.Sharplycontrastingtypesoflandoftenlieveryclosetooneanother.PeoplelivinginBakersfield，forinstance，canvisitthePacificOceanandthecoastalplain，thefertileSanJoaquinValley，thearidMojaveDesert，andthehighSierraNevada，allwithinaradiusofabout100miles.Inotherareasitispossibletogosnowskiinginthemorningandsurfingintheeveningofthesameday，withouthavingtotravellongdistance.ContrastaboundsinCalifornia.ThehighestpointintheUnitedStates(outsideAlaska)isinCalifornia，andsoisthelowestpoint(includingAlaska)。MountWhitney，14，494feetabovesealevel，isseparatedfromDeathValley，282feetbelowsealevel，byadistanceofonly100miles.Thetwoareashaveadifferenceinaltitudeofalmostthreemiles.Californiahasdeep，clearmountainlakeslikeLakeTahoe，thedeepestinthecountry，butitalsohasshallow，saltydesertlakes.IthasLakeTulainyo，12，020feetabovesealevel，andthelowestlakeinthecountry，theSaltonSea，236feetbelowsealevel.Someofitslakes，likeOwensLakeinDeathValley，arenotlakesatall：theyaredrieduplakebeds.Inadditiontomountains，lakes，valleys，deserts，andplateaus，CaliforniahasitsPacificcoastline，stretchinglongerthanthecoastlinesofOregonandWashingtoncombined.
1.WhichofthefollowingisthelowestpointintheUnitedStates?
A.LakeTulainyoB.MojavedesertC.DeathValleyD.TheSaltonSea
2.WhereisthehighestpointintheUnitedStateslocated?
A.LakeTahoe.
B.SierraNevada.C.MountWhitney.
D.Alaska.
3.HowfarawayisDeathValleyfromMountWhitney?
A.About3miles.
D.14，494feet.
4.WhichofthefollowingisNOTmentionedinthepassageasbeingwithinaradiusofabout100milesofBakersfield?
A.ThePacificOcean.
B.SanJoaquinValley.
C.MojaveDesert.
D.OregonandWashington.
5.WhichstatementbestdemonstratesthatCaliforniaisalandofvarietyandcontrast?
A.ThehighestlakeinCaliforniaisLakeTulainyo.
B.ItispossibletogosurfingandsnowskiinginsomepartsofCaliforniawithouthavingtotravellongdistance.
C.SierraNevada，SanJoaquinValley，MojaveDesertandthePacificOceanallliewithinaradiusofabout100miles.
D.OwensLake，inDeathValley，isnotreallyalakeatall.
CDBDC
暫無解析
It’s important_____ a foreign language
By local doctors and nurses, we hope more people.
Mr.Greenisusedto_________twoapplesafterluncheveryday.
漢譯英：手機改變了人與人之間的關系。 通常有注意到會議室的門上的告示，寫著―關閉手機。‖然而，會議室仍然充滿著鈴聲。我們都是普通人，沒有很多重要的事情。但是，我們也不愿輕易關閉手機。打開手機象征著我們與世界的聯系。 手機反映出我們的社交饑渴。我們經常看到，一個人走著走著，就突然停下來了，眼睛盯著他的手機，不管他在那里，無論是在道路中心或旁邊有廁所。
It is necessary that the students ____ more excercises to do.
