Sally is a good student.She does well in all her{#blank#}1{#/blank#}(subject).You must wonder{#blank#}2{#/blank#}she can study so well.Let me tell you something about her good study habits.

    First,Sally spends two hours{#blank#}3{#/blank#}(study) after school every day.And she always studies from seven to nine on schedule.Sally is a very{#blank#}4{#/blank#}(determine) girl,so nothing can stop her doing that.

    Second,if Sally wants to start studying,first she{#blank#}5{#/blank#}(put) everything that has nothing to do with her studying aside,like the cell phone.And{#blank#}6{#/blank#}(actual) there are only books left on her desk.

    Third,Sally never{#blank#}7{#/blank#}(leave) her problems till next day.When she meets some difficult problems and she can't work{#blank#}8{#/blank#}out,she will make a request to others for help.She doesn't wait{#blank#}9{#/blank#}(do) them next day.

    What do you think of Sally's study habits?You can have a try.I hope they will be{#blank#}10{#/blank#}great help to you.

    The Great Wall of China is more than 6,000 kilometres long. It winds {#blank#}1{#/blank#} (it) way from west to east, across deserts, over mountains, through valleys{#blank#}2{#/blank#}at last it reaches the sea. The Great Wall has a history of over twenty centuries. The first part of it {#blank#}3{#/blank#}(build) during the Spring and Autumn period. During the Qin Dynasty, {#blank#}4{#/blank#}(keep) the enemy out of his empire, Emperor Qin Shi Huang had all the walls {#blank#}5{#/blank#}(join) up. Thus, the Great Wall came into being. The Great Wall is wide enough at {#blank#}6{#/blank#}top for five horses or ten men to walk side by side. Along the wall are watchtowers, {#blank#}7{#/blank#}soldiers used to keep watch. Fires were lit on the towers as a {#blank#}8{#/blank#} (warn) when the enemy came.

    It was {#blank#}9{#/blank#}(extreme)difficult to build such a wall in the ancient days without any modern machines. All the work was done {#blank#}10{#/blank#}hand. Thousands of men died and were buried under the wall they built. The Great Wall was made not only of stone and earth, but of the flesh and blood of millions of men.

    On Monday, World Health Organization (WHO) stated a plan to rid the world's food supply of trans fats（反式脂肪）. These unhealthy things have been related to many illnesses. WHO is a United Nations organization {#blank#}1{#/blank#} works to improve good health around the world. Its plan is called REPLACE. The step-by-step guide is designed {#blank#}2{#/blank#} (help) world governments remove trans fats {#blank#}3{#/blank#} their foods within the next five years.

    Trans fats {#blank#}4{#/blank#} (use) in baked goods and fried foods. Food companies use trans fats to keep foods for longer periods of time. But the things can be deadly. WHO says that{#blank#}5{#/blank#}(eat) foods with trans fats results in more than 500,000 deaths from heart disease every year. Trans fats are a harmful substances and can be removed {#blank#}6{#/blank#} (easy) without major cost and without any effect on the quality of the foods.

    Denmark {#blank#}7{#/blank#} (be) the first country to ban trans fats 15 years ago. The United States and 40 other {#blank#}8{#/blank#} (country) soon followed. “Why should our children have such {#blank#}9{#/blank#} unsafe substance in their foods?” Dr. Tedros Ghebreyesus asked in an interview. He is WHO's director-general. He said that the plan could “make food systems much {#blank#}10{#/blank#} (healthy) for future generations.”

    Looking out of the window of his Ford truck, Bob Fitzgerald sees large, undesirable plants growing in the fields.{#blank#}1{#/blank#} (visitor) to his neighborhood in Princess Anne, Maryland {#blank#}2{#/blank#}(main) see dying forests and empty farmland.

    Fitzgerald says the land{#blank#}3{#/blank#}(be) in his family for over 3 centuries. "I'd say in the next 20 years. You're going to lose{#blank#}4{#/blank#}very high percentage of that land."

    The land around the Chesapeake Bay has been sinking for hundreds of years. But climate change is making things{#blank#}5{#/blank#}(bad). As sea level rises, salt water is entering rivers and other waterways. As a result, the ground is becoming too salty for crops{#blank#}6{#/blank#}(grow) on.

    Maryland's Eastern Shore is home to some of the oldest farms in North America.

    Fitzgerald says he has seen big changes during his life.

    "You just can't believe{#blank#}7{#/blank#}it's been taking things over in the last 15 or 20 years. I can show you land around here that people raised tomatoes on when I was a little boy. And now it's gone."

    Around the world, scientists warn that coastal farms are under{#blank#}8{#/blank#}(threaten) from rising seas and salt water. A World Bank report estimates rice production in coastal areas of Bangladesh may fall{#blank#}9{#/blank#}15 percent by the year 2050. Another study found hundreds of millions of people will{#blank#}10{#/blank#}(force) to move inland because of rising waters.