Travelling is a very good activity. When you get tired of your work or study, and when you are not busy, you can go to a beautiful place to enjoy the beauty of nature or other cities. You can take in fresh air, meet different people and make friends with them. It is good for your health to do so.

But sometimes, travelling is not an enjoyable thing. For example, the weather can be changeable too often. You may catch a cold or be ill while travelling. The worst thing is some bad persons may steal your money. All these may happen to a tourist.

When you go on a trip, you must get everything ready. Firstly, you must have clear information about the weather. Secondly, ask a friend to go with you so that you can help each other. Thirdly, you must be careful everywhere and try not to cause accidents. If you do this, you will surely enjoy our travel.               

A fish that lives in America can live out. of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.
The Mangrove Rivulus, a kind of little fish, lives in small pools of water. When their living place dries up, they live. on the land, said Scott Taylor, a researcher in Florida.                        
The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.
The new scientific discovery came during a trip.
"We were travelling for fun. and one day I kicked over a log (圓木) and the fish came out," Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.
In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish(肺魚) found in Australia, Africa and South America can live out of water, but only in a not active(活波的)way. But no other known fish can be out of water as long as the Mangrove Rivulus and keep active, according to Patricia Wright, a biologist at a Canadian University.
More studies of the fish may tell how animals changed over time.
"These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land," Wright said.
【小題1】The Mangrove Rivulus is a type of fish that_________.

Microblogging(微博) is sweeping across the world. You Can express your ideas on any topic on it. Of course, you might also make comments(評(píng)論) on others' microblogs.
The following is Tonv's microblog at Enviroboard and its comments.
Subject: Eco-Friendly Transportation
Saturday 9th June 8:05 am " 
Hi everyone! My name's Tony. I'm doing a project about greener ways to travel. I want to know if anyone has any good ideas. Thanks for your help!                
                                                                  Comments [4]
I think people should do more things online from home. Why pollute the air by driving your car to the supermarket, when you can order your weekly shopping on the Internet~ You can also book holidays as well.                    
                                               Posted by Billy on June 1 lth 7:36 am
I try to use public transportation whenever I can. I take the bus to college and walk home. When my mum wants to give me a lift, I always refuse, as I can get there quickly by bus. Also the buses in my town are electric so they are environmentally friendly!
                                             Posted by Carol on. June 12th 10:35 am           
Why not use two wheels? Any motorcycle will use less fuel (燃料)an a car. You don't get caught in traffic jams either. But in my opinion, the best thing is a bicycle. They don't produce any pollution and help you to keep fit at the same time.                                                      
                                               Posted by Daz on .lune 12th 16:00 nm
I can't get to my university by bus or train. So I found three other girls who live nearby to have a car share with. And now we take it in turns to drive every day. I have cut down the costs -- and most importantly,- I am helping the environment!
                                             Posted by Angela on June 15^th 9:36pm
【小題1】Billy thinks that we can make less air pollution by            .
A. doing things online at home        
B. driving cars to shopping centres
C. taking buses to the supermarkets
【小題2】Buses in Carol's town are environmentally friendly because             .
A. they use fuel         B. they are cheap         C. they are electric
【小題3】Daz thinks riding bicycles ___________.
A. will help us save more fuel        
B. will get caught in traffic jams, too
C. can be very clean and help keep fit
【小題4】Angela goes to school by car sharing because ___________.
A. she doesn't like buses           
B. she wants to help the environment
C. she wants to go to school quickly
【小題5】Tony wrote the message on his microblog to ____________.
A. get some good ideas on making net pals
B. get some tips on travelling to the places with green trees
C. ask for some advice on cutting down pollution while travelling

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Travelling is a very good activity. When you get tired of your work or study, and when you have free time, you can go to a beautiful place to enjoy the beauty of nature or other cities. You can breathe fresh air, meet different people and make friends with them. It’s good for your health to do so.

But sometimes, travelling is not an enjoyable thing. For example, the weather can be changeable. There may be rain when you travel. You may catch a cold or be ill while travelling. The worst thing is that the thieves may steal(偷) your money. All these may happen to a tourist.

When you go on a trip, you must get everything ready. Firstly, you must have clear information about the weather. Secondly, ask a friend to go with you so that you can help each other. Thirdly, you must be careful everywhere and try not to cause accidents. If you do this, you will surely enjoy your travel.