The rain coat is used for{#blank#}1{#/blank#} the rain .
The book{#blank#}2{#/blank#} educating teenagers
{#blank#}3{#/blank#}  my home , when you have time .
You are supposed to {#blank#}4{#/blank#}  when you meet someone for the first time in China .
He studies hard{#blank#}5{#/blank#}  go to a good university .

bare  because  wear  protect   reason

Why do we wear clothes? You may think it is an easy question. But there are many {#blank#}1{#/blank#} why people wear clothes. In the past, many Europeans and Americans believed that people wore their clothes {#blank#}2{#/blank#} they didn't want other people to see their {#blank#}3{#/blank#} bodies. Today we believe that people first started {#blank#}4{#/blank#} clothes to {#blank#}5{#/blank#}themselves from the sun, the wind, the rain, the cold and other bad weather.

    Today is 1st June. Betty and Jenny are in Paris. They arrived {#blank#}1{#/blank#} days ago.

    Yesterday, they visited the Louvre Museum. And in the evening, they {#blank#}2{#/blank#} their dinner in a French restaurant.

    This morning they went to the street {#blank#}3{#/blank#}. Betty loved them. And she {#blank#}4{#/blank#} her grandma a present. In the afternoon, they went to the Eiffel Tower by {#blank#}5{#/blank#}.

Tomorrow they're going to visit a famous palace and {#blank#}6{#/blank#} a trip on the River Seine by boat.

    Why do you think people who live in some hot countries eat very spicy(辛辣的)food？Is it because the spices(调味品)make the food taste better？Is it just because their parents and grandparents and great-grandparents liked hot food, or is there some{#blank#}1{#/blank#}between spices and healthy food？

    Researchers from Cornell University think that it is because spice plants have some important chemicals. These chemicals can kill bacteria which spoil food.

    "Most common spices can kill 75 to 100{#blank#}2{#/blank#}of the bacteria in food, "explains one of the scientists. The bacteria grow more{#blank#}3{#/blank#}and spoil food more quickly at higher temperatures. For this reason, it is more difficult to keep food from spoiling in hot climates.

    Do you like your food spicy？You answer probably tells something about the country you come from. If you like spicy food, it is possible that hundreds of years ago, when there were no fridge, people in your country started using spices to keep the food from spoiling. The traditional spicy dishes helped those people to live{#blank#}4{#/blank#}, healthier lives. Today, in a time of fridges, the spices just make the food taste good.