【推荐1】Six-year-old Alfred is from California. He didn’t ________ to become a hero when he went for a walk with his mom. But when some strangers ________ out for help, Alfred and his mom ran to their side. It ________ that some ducklings (小鸭子) had gotten stuck (卡住) and the people who found them were unable to save them. But luckily for the ducklings, Alfred had just what it ________ to bring them to safety. Now the six-year-old kid’s kind act is being talked about around the country.

It all ________ when a family found a mother duck walking with only one duckling by chance. The father duck was nearby, but ________ there were no other ducklings following them. ________ the family knew that ducks often travel in flocks (群), they realized that ________ was probably wrong.

Then suddenly, there were strange ________ coming from a drainage pipe (排水管). They were the cries of ducklings. It turned out that the other ducklings had ________ into the pipe and gotten stuck. Unluckily, no one in the family had thin enough ________ to reach down and pull out the ducklings — but luckily, there was a hero nearby. The family shouted to Alfred and his mom, who ran to them at once. The family told Alfred and his mom what had happened, and Alfred decided to take ________ right away and try to bring the ducklings to safety. Alfred put his arm down into the dark pipe ________ and lifted the first duckling. Alfred then tried to save the next duckling, and the next ... ________ he brought all eight ducklings to safety. After Alfred saved the little ducklings from ________, the overjoyed mother duck went off with her beloved ducklings.

【推荐3】Have you ever planted some trees on Tree Planting Day? Every year, millions of people, both the old and the _________, plant a lot of trees. But this may not be the best way to make our home a _________ place. Last week we visited a city in Hebei. We were all _________ to see a lot of trees burning near the hills. We asked why, the workers there told us that the trees _________ soon after they planted them. So they burned them and cleaned the _________ for planting new trees this year. We found a card and it _________, “I hope this tree will grow up with me to be the backbone (栋梁) of our _________.” The workers said that it was _________ for us to plant more trees, but making them alive was more important.

Some people now have a new idea that they can donate (捐赠) some _________ and let professionals (专业人员) plant and take care of the trees, because their knowledge about planting trees is __________ than the others and can do better. Do you think so?

【推荐1】The earth is our home. We must take care of it. Life today is easier than it was hundreds of years ago, but it has brought some new_______. One of the biggest problems is pollution. We can see it, smell it, drink it and even hear it.

Man has polluted the_______. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so_______people. When the land was used up or the river was not clean in a place, man went to_______place. Now man is slowly polluting the whole world.

_______pollution is still the most serious, it's bad for_______things in the world.

Many countries don't let people burn_______for air in the houses and factories in the city. Pollution by SO2 is now the most dangerous kind of air pollution. It's caused by heavy traffic. People say it's_______to ride bikes. When you are riding, there is no pollution. But even in developed countries, most people don't go to work by bike. It's not because bikes are expensive or people are tired if they ride to work. It's because the number of cars on the roads becomes larger. So more people_______their bikes   and go   to work by car, then things are getting worse and   worse. We should have special roads only for bikes and make it________difficult and expensive   for drivers to take their cars into the city that they will go back to using their bikes.

【推荐2】What can a city do about litter（扔垃圾）? Garbage in the streets is a big problem. There are some answers to this problem. A city can buy more garbage cans（垃圾桶）. ____ usually that doesn’t help much. In some cities，people don’t use garbage cans.

The police can ____. They can watch for litterbugs. Litterbugs are people who throw（扔） garbage on the ground. The police can tell them to _____! But sometimes even the police cannot help much. Some people don’t care（关心）. They _____ throw garbage on the ground.

All people must want to keep parks and streets ____. Advertisements（广告） can help. People can talk about the problem ____ the radio and television. They can ask for help. You can ask for help. You can ask your neighbours to care about the _____.

There is a popular saying, ＂Every little bit counts. ＂In a city, every little bit of litter makes a difference. Every little bit of garbage makes a city ____. Every ＂litter＂ bit of garbage in a garbage can helps to ____ a clean city.

People can make a city clean or dirty. In fact, only _____ can make the difference between clean and dirty.

【推荐3】There are some easy things you can do to protect the environment and the Earth. Choose ideas from the list or come up with a few of your own.

Plant flowers, grass, or trees.

Whenever you visit a park or a beach, ________ what you bring there—keep rubbish in a bag until you can put it in a dustbin.

Turn off the lights, TV sets ________ you leave the room. This saves a lot of electricity.

Turn off the tap when you brush your teeth. You can save some water by not letting it run. You should ________ use a glass cup instead of a paper cup because this saves paper.

Keep the doors and windows ________ in winter to keep warm air in.

Give your old books and ________ to a library instead of throwing them away.

Give your old clothes to poor children you know instead of throwing them away.

Use both sides of paper.

Stop pouring ________ water into the rivers or lakes nearby.

________ all your friends to do the same things you do to help protect the Earth. You don’t have to wait until Earth Day to do these things. Make every day Earth Day. If everyone protects the environment, the world will become much more beautiful.