1. hai yang   lake   ocean   continent   reef   Hint Half-n-half Clue   2. shan   city, town   plain   oasis   mountain   Half-n-half Clue   3. jiao [dan;shi]   peninsula   reef   ocean   waterfall, falls   Half-n-half Clue   4. [da;dai] [liu;lu]   plateau   continent   lagoon   waterfall, falls   Half-n-half Clue   5. [lu;lu:] zhou   mountain   oasis   island   plain   Half-n-half Clue   6. hai dao   sea   island   river   plateau   Half-n-half Clue   7. yan shui hu   peak   lagoon   waterfall, falls   sea   Half-n-half Clue