In recent years, with more and more cars on the road, flying robots are used to _______ express (快递). Flying robots can carry express to people’s houses without having to deal with heavy _______. But they will spend too much time in _______. A research center is trying to improve its flying robots with the _______ of homing pigeons (鸽子).

Homing pigeons are pigeons that are specially _______ to fly home from somewhere else. In tests, researchers _______ that homing pigeons were _______ efficient (高效的) than flying robots when they flew back to their home. So the research center is trying to use a flying robot, together _______ a homing pigeon to give out express. _______ the robot finishes the express, it can follow the pigeon back in the shortest possible time.

Although it will need more money to raise pigeons, the research center says that it can save time. It is ________ for people to use flying robots in the future.

【推荐3】Robots seem very new to most people. But they have a long history. The ________ one was made by a Greek inventor. You may ________ robots in some films. The robots in these ________ are stronger, faster and cleverer than people. In real life, ________ robots are used in factories. They are used to do many ________, difficult or boring jobs. Some people can’t look after ________ and robots are used to help them. For example, some people can’t ________, so many of these people use a ________ to help themselves move around. This dog is called a guide dog. ________ are making robots to help them. In the future, robot dogs will ________ take the place of these guide dogs.

Robots can also be ________ in hospitals. At one hospital, a robot takes meals ________ the kitchen to the sick people’s rooms. It never loses its way ________ it has a map of the hospital in its computer system. In the future, robots ________ in space.

However, robots will never take the place of ________. They can, however, help us in a lot of different ways.

【推荐1】Julia Hill, an American woman, found out that a company wanted to cut down part of a forest in California. There were lots of redwood trees in the_______. One of the trees was 70 metres tall and about 1,000 years old.

Julia wasn’t _______ about this. She went to California and climbed up the tree. “If I sit in the tree,” she said, “the company can’t cut it down.” At the beginning, Julia planned to stay in the tree for two weeks. She_______ in a small tree-house and her friends were very helpful — they made _______ for her every day.   She used her _______ to talk to her family and to news reporters (记者). She stayed in the tree_______.

Many people helped her, but other people didn’t. They tried to_______ her. The company used a helicopter (直升机) to stay near her tree-house for a long time. The helicopter was very _______ and there was a lot of wind. Julia didn’t like it, but she stayed in the tree.

In the end, she was_______. The company told her that they wouldn’t cut down the redwood. Finally, after two years and eight days in the tree, Julia Hill climbed ________ and walked on the ground again. She and her friends were very happy.

【推荐2】As we know, life today has many problems. One of the biggest is _______, such as water pollution, air pollution, _______ pollution and so on. Water pollution makes our rivers and lakes _______. It kills fish and pollutes our drinking water. Air pollution is the most serious kind of pollution. It’s _______ for living things in the world. Noise pollution _______ us talk louder and become angry _______.

The Earth is _______ home and we must save it. We can’t _______ waste here and there. We should go to work and school by _______ or with our friends in the same car. Everybody ________ help to save the Earth.

【推荐3】

Maxime and Lisa are a young French couple.They are ready to travel across China from Beijing to Yunnan on a tandem bicycle(双人自行车).They want to encourage green _____through it.

Maxime,26,works helping farmers raise their cows,________his wife Lisa,26,is a teacher.The two also like sharing their travel stories on Facebook.

“We choose a tandem bicycle because it makes it ___________ to communicate with each other about interesting people and things during the journey. __________,bicycling is healthier.And it’s a cheaper and more environment-friendly way of traveling than   __________ cars,motors and so on,” they said.

As for the other   __________ of their journey,the two said they wanted to get people’s good ideas on topics such as health,economy(经济) and politics.When people asked them __________ they chose to visit China,they said it was because they often talked about its long history.

“We know China is a country with a large population and will be the   __________ of the economy around the world in the future.We want to get a better understanding of the country and its people.We   _________ the country,” they said.

The couple will be on their journey to China soon.We hope they can make more people further   _________ China by sharing what they see and hear on the way.Meanwhile,we hope they enjoy their travel in China.