People all over the world like to eat in fast food restaurants. The food there is delicious and it comes q{#blank#}1{#/blank#}. Also, it is not too expensive, and the restaurants are always c{#blank#}2{#/blank#}and bright. People can eat in or take their food away.

    Chinese families l{#blank#}3{#/blank#} eating in fast food restaurants, too. There are two kinds of fast food restaurants in China:  the western fast food restaurants and the Chinese o{#blank#}4{#/blank#}. Western fast food restaurants sell hamburgers, French  fries, fried chicken, drinks and so on(等等)。Chinese fast food restaurants sell dumplings, noodles, spring rolls and other Chinese snacks.

    My family likes fast food, but we don't eat at western fast food restaurants very often. My mum says some fast food is b{#blank#}5{#/blank#} for us. It is usually high in fat. It is not good for our h{#blank#}6{#/blank#}.

    It's 21:00 in Beijing now. Let's look at what the four students are doing.

Do you like taking a trip? Now many students like riding bikes to take a trip. But it may be dangerous. For your own safety (安全), do the following things. 

Wear a bike helmet because it can protect (保护) your head. Look for a helmet that is right for you. The best helmet can't protect you if it isn't right for you. 

Wear the right clothes. They can make you feel better. They can also protect you. Bright-colored clothes like white help people see you clearly--even in the nighttime. Don't wear dark-colored clothes like black or brown when you are riding a bike. 

Follow the rules on the road. Always ride on the right side of the road. Please first look behind you before you turn left or turn right. And don't ride too closely (接近) to the cars--the cars may stop and the door may open suddenly! Also, don't just listen to music when you are riding a bike. If you listen to music, you may not know there is a car behind you. 

If you follow these tips, you'll be safe riding on the road. 

① Do you have a dog? What can your dog do for you? Do you know that dogs can read our feelings? Now some people find that dogs can smell (v.闻到; n.嗅觉) people's stress (压力).

②Dogs really are man's best friends. They have special smell. A new study said that dogs can smell if people are feeling stressed. Teachers at Queen's University, UK, made the study. They got breath(呼吸)and sweat(汗) from people both before and after doing a hard maths problem. They looked at the people's heart rate (心率), blood pressure (血压) and stress feeling in the study. Dogs can smell the difference in breath and sweat from people. Then they can know when people are stressed.

③The finding is wonderful: the dogs found stress in 675 of the 720 people. It could be 93.75% right! Australian News reported. The study's writer Clara Wilson said, "stress can change people's breath and sweat. Dogs are very good at smelling these changes." In the study, she also said, "this finding helps us learn that how dogs may know people's feelings."

④ This finding shows how special the bond is between people and dogs. The finding also tells us that dogs are very clever. And maybe dogs can help stressed people.

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