1. in，on，under，inside，outside
2. between，beside，behind，before，after
3. in front of，above，below，over
A.infrontof:指在物体_______的前面。
Thereisasmallriverinfrontofthehouse.
B.inthefrontof:指在物体_________的前面。
Thereisablackboardinthefrontoftheclassroom.
(2)above,over与on:
A.above意为“在......的上面，高于”Themapisabovethedesk.
B．over意为“在......的正上方”ThereisthickcloudoverBeijing.
C.on意为“在......上”Thebookisonthedesk.
(3)below与under:
A.below意为“在......的下方，低于”Theriverisbelowthemountain.B.under意为“在......的正下方”Theballisunderthechair.
(4)behind意为“在......的后面”
Thereisagardenbehindthehouse.
(5)beside意为“在......的旁边”Thereisabookbesidethecomputer.
(6)in意为“在......的里面”Thepenisinthebox.
(7)nextto意为“在......旁边”Thereisashopnearthehospital.
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