plastic，fisherman，bottom，cost，ugly

（1）The river is so clear that we can see its

bottom

bottom

.
（2）The new car

cost

cost

a lot of money，but it was certainly worth it.
（3）Those

fishermen

fishermen

couldn't go to catch fish because of the bad weather.
（4）It's really bad for our environment to use

plastic

plastic

bags for shopping.
（5）Sometimes something that looks

ugly

ugly

is very beautiful in its heart.