Snake meat is popular in restaurants．Some people think eating snakes is good for their health．But these people don't know that mice and bad worms are often in snakes' bodies．And we're sorry to see that some people are killing more snakes．

The English newspaper Shanghai Star says，“People in Shanghai eat about 1,000 tons of snakes every year．In Shenzhen，sometimes people serve 10 tons of snakes on dinner tables in a day．”

If we still do like this，there will be a vicious（恶性的）circle：If people eat more snakes，the snakes will disappear，but the mice will be more，there will be fewer crops．

This will make more people hungry（挨饿）．Who wants to see such a bad thing happen? So let's not eat snakes any more．To protect snakes is to protect ourselves．

任务（一）：给下列句子填上适当的单词。（词数不限）

1．Snakes eat lots of __________．

2．People in Shanghai eat __________ snakes than those in Shenzhen．

任务（二）：回答下列问题。

3．Are snakes good or bad for humans?

4．What will happen if there are no snakes'?

任务（三）：将文中画线的句子译成汉语。

5．

My holiday is coming. Yesterday I asked my American friends about the best way to travel with in the United States. They said it was best to go by   31   and gave me the   32  . To fly, of course, is the fastest way, but one can't see anything during a   33  except the blue sky and white clouds. So it is not very interesting to one who wants to see the  34  . Besides, airfare is very  35  .

To travel by train is   36   , because passengers can walk and buy food and drinks on a train. They can also see cities and the country through the windows. But trains don't leave or  37  at a place every day, and don't go to many cities.

To travel by bus, my friends tell me, is easy, cheap and convenient, though not so fast as traveling by plane or so     38    by train. You can find buses almost in every city, big or small. That makes travel arrangement easy.

I take their  39  . Now I have decided to go to the east coast with an interesting    40  by bus. 

(   )31. A. bus                                  B. train                               C. plane

(   )32. A. reason                              B. answer                                   C. suggestion

(   )33. A. railway                             B. flight                             C. course

(   )34. A. country                                   B. heaven                            C. mountains

(   )35. A. cheap                               B. large                               C. expensive

(   )36. A. relaxing                            B. interested                         C. dear

(   )37. A. wait                                B. arrive                                    C. pass

(   )38. A. comfortable                      B. convenient                       C. tiring

(   )39. A. advice                              B. surprise                          C. feeling

(   )40. A. dialogue                           B. movement                       C. trip

   My holiday is coming. Yesterday I asked my American friends about the best way to travel within the United States. They said it was best to go by ___1____and gave me the __2___.

   To fly, of course, is the fastest way, but one can’t see anything during a __3___ except the blue sky and white clouds. So it is not very interesting to one who wants to see the __4____ . Besides, airfare is very ___5__ .

   To travel by train is _6___ , because passengers can walk and buy food and drinks on a train. They can also see cities and the country through the windows. But trains don’t leave or __7_ at a place every day, and don’t go to many cities.

   To travel by bus, my friends tell me, is easy, cheap and convenient, though not so fast as traveling by plane or so __8__ by train. You can find buses almost in every city, big or small. That makes travel arrangement easy.

   I take their _9___ . Now I have decided to go to the east coast with an interesting _10___ by bus.

1. A. bus                              B. train                         C. plane

2. A. reason                            B. answer                        C. suggestion

3. A. railway                          B. flight                          C. course

4. A. country                           B. heaven                       C. mountains

5. A. cheap                            B. large                       C. expensive

6. A. relaxing                           B. interested                     C. dear

7. A. wait                           B. arrive                        C. pass

8. A. comfortable                     B. convenient                   C. tiring

9. A. advice                           B. surprise                     C. feeling

10. A. dialogue                        B. movement                    C. trip