16．Eco-travel is a form of travel that combines normal tourism with learning

15．--- Of course. Have a good trip.　 --- Thanks. The same to you. Bye.

13．Is anybody seeing you off？ 14．My plane leaves at seven. so I think we’ll take a taxi.

11．When are you off to Guangzhou?　 12．How are getting to the airport？

10．Jane and Betty are going on separate holidays in a few days’ time.

8． As with hiking, you should always think about your safety and wear good clothes.

7． If you are looking for more excitement, you may want to try whitewater rafting.(注意此句划线部分是“现在进行时表示将来时”。)

6． Wear a hat to protect yourself from the sun 　(区分 prevent / keep / stop…from)　 例如：

　We wear sunglasses to protect our eyes from the sun.

　We wear sunglasses to prevent the sun from hurting our eyes.

*　 protect…from = to keep safe by guarding or covering

*　 prevent…from = to keep something from happening or stop somebody from doing sth

5． Watch out for dangers, such as spiders, snakes or poisonous plants.

4． You will get close to nature and take exercise at the same time.