unit 5 water

1. I spilled(洒出) a d _______________of oil on my new coat.
4. Don't drive across the crossroads when the red light is o_______________.It's dangerous.
6. Thank you for your v _______________time.
8. Buses and cars travel quickly t _______________ the tunnels between Pudong and Puxi
9. In fact, there is not much f _______________ water on Earth for us to drink directly.
11. Those workers are laying p_______________ under the street, so it's quite awful to walk here.
12. It is cheaper to buy things in large q_______________

2. Boys, you mustn't swim here in the r_______________. The water is deep and no guards are around here.
3. The j _______________is about three hours from Shanghai to Chengdu by air
5. Trees can make a kind of c_______________ to make their leaves taste nasty（极差的） when there are a lot of insects on them.
6. "Help! Help!" Suddenly I heard a sharp v_______________calling out for help.
7. If you a_______________3 and 4, you get 7.
10. Mum, you have put too much s_______________ to the meat. It's too salty.