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LEVEL 1 PART 1
Humans may not be the only ones to use language. Scientists think dolphins also use words and sentences to speak to each other. New research shows this communication is similar to our conversations. The sounds that dolphins make look like sentences that let dolphins send messages to each other, identify themselves, have relations, and do things together. We may be able to understand dolphin language and talk to dolphins in the future.
Researchers discovered that dolphins had their own language after they recorded two bottle nose dolphins. The dolphins listened to each other and then replied. A researcher said: "This resembles a conversation between two people. This language exhibits all the features present in the human spoken language. This indicates a high level of intelligence in dolphins." He said the dolphins' language is highly developed like the human spoken language.
LEVEL 1 PART 2
A U.S. insurance company is paying workers to sleep more. Staff will get $300 a year extra if they sleep more than seven hours a night. This idea is to make employees work better. Human resources officials say employees work better if they sleep well. The company will then perform better. Staff can record their sleep automatically using a wrist monitor, or record how long they have slept every night.
Many studies show that not sleeping enough affects our ability to do our job. The average U.S. worker loses 11.3 working days of productivity a year because of not sleeping enough. The US economy loses $63.2 billion a year because of this. A study in Europe found that staff who slept less than seven hours per night did much less work than workers who had eight or more hours. Workers at Aetna also get extra pay if they exercise.
LEVEL 1 PART 3
A McDonald's restaurant will soon offer all-you-can-eat French fries. It will open in July. McDonald's called it the restaurant "of the future" because of many new features. The new location will have armchairs and a large play space for children. Customers will also be able to order food from waiting staff and choose their own fillings. The restaurant owner said: "There are hundreds of different choices to build the burger of your dreams."
There have been many recent changes at McDonald's. The new boss has tried many things to make more profit. Some of these include an all-day breakfast menu and touch-screen ordering. People have different views about the all-you-can-eat fries. Health campaigners say it will create more obesity. They say McDonald's should have healthier food. One customer said endless fries are a great idea. She wants to go to McDonald's more often.