cross across through.ppt

cross作动词用，“穿过，越过”的意思。
主要表示在物体表面上横穿。
如横过马路、过桥、过河等，与goacross同义。
Becarefulwhenyoucrossthestreet.
过马路时要小心。
Cross(Goacross)thebridge,andyouwillseeabigbuilding.
过这座桥你就会看到一栋大楼。
cross作名词用是“十字架，十字形饰物”的意思。across是介词，有“横跨，横穿，穿越”意。
TheGreatGreenWallisacrossthenorthwestofChina.
绿色长城横跨中国西北。
across与go/walk等动词连用表示“穿过，越过，横穿”的意思。与cross基本同义，也是表示
从物体表面经过。
Goacrosstheroad,youwillfindthepostofficeonyourleft.
横过这条公路，你会发现邮局就在你的左边。through是介词，“在...之中，透过”的意思，常与go,walk等动词连用，表示“穿越，横穿”等意思。
主要表示从物体内部穿过。如穿过森林、隧洞等。
Thetwofriendsarewalkingthroughtheforest.
这两个朋友正沿着森林走。
Thesunlightcomesthroughtheglass.阳光透过玻璃。练习：
1.Wemust_______theroadverycarefully2.Beforegoing______theroad,youshouldlookleftfirstandthenright.
3.Look!Themanisswimming_______thelake.
4.Theydrove_______thestreetquickly,butthepolicecaughtthematlast.
5._______thestreetandyoucangettothehotel.
6.He________theroadandthencomestothepostoffice.
7.Walk_______thefootbridge.
8.Go_________thebridgeandyouwillseethestation.
9.Youcan’t______theroadwhenthelightisred.
10.It’sdangeroustoswim______theriver.11.Shewalks_______theroad.
12.Canyouswim_______theriver?
13Thepoliceledtheoldman________thestreet.
14.Wewalked_________theforest.
15.Canthetablego________thedoor?
16.Thestreamwinds________thevillage.
17.Itrytogetintotheroom________thewindowbecauseIcan’topenthedoor.
18.Thetigerisjumping______theburningring.
19.Shallwewalk________thefield?