Are you facing a situation that looks impossible to fix?

    In 1969, the pollution was terrible along the Cuyahoga River Cleveland, Ohio. It {#blank#}1{#/blank#} (be) unimaginable that it could ever be cleaned up. The river was so polluted that it {#blank#}2{#/blank#}(actual) caught fire and burned. Now, years later, this river is one of {#blank#}3{#/blank#} most outstanding examples of environmental cleanup.

    But the river wasn't changed in a few days {#blank#}4{#/blank#}a few months. It took years of work {#blank#}5{#/blank#} (reduce) the industrial pollution and clean the water. Finally, that hard work paid off and now the water in the river is {#blank#}6{#/blank#}(clean) than ever.

    Maybe you are facing an impossible situation. Maybe you are leaving a habit {#blank#}7{#/blank#} is driving your family crazy. Possibly you drink too much or don't know how to control your credit card use. When you face such an impossible situation, don't you want a quick fix and something to change immediately?

    While there are {#blank#}8{#/blank#} (amaze) stories of instant transformation, for most of us the{#blank#}9{#/blank#} (change) are gradual and require a lot of effort and work, like cleaning up a polluted river. Just be {#blank#}10{#/blank#} (patience).

    Born in England in 1944, Ian Wilmut{#blank#}1{#/blank#}(know)as the leader of the research group that first cloned a female lamb {#blank#}2{#/blank#}(call)Dolly in 1996. Dolly became famous and pictures of her appeared on the{#blank#}3{#/blank#}(cover)of magazines all over the world. The{#blank#}4{#/blank#}(possible)of reproduction without a male and female being involved also made her the focus of a moral debate. For scientists, however, the cloning of dolly using the DNA of an adult cell was a breakthrough {#blank#}5{#/blank#}showed the cloning of special animals was possible.

    However,{#blank#}6{#/blank#}Wilmut thinks unlikely is human cloning. He says {#blank#}7{#/blank#}(undertake)the procedure with humans would require 29 surrogate(替代的)mothers and 300 eggs. Of those 29,28 would be bound {#blank#}8{#/blank#}(experience)failure and suffer physically and emotionally. He says he is also concerned about the psychological and{#blank#}9{#/blank#}(society)consequences a cloned might have to go through. For these reasons, he is not {#blank#}10{#/blank#}favor of it.

    Few people I know seem to have much desire or time to cook. Making Chinese{#blank#}1{#/blank#}(dish) is seen as especially troublesome. Many westerners {#blank#}2{#/blank#} come to China cook much less than in their own countries once they realize how cheap {#blank#}3{#/blank#}can be to eat out. I still remember{#blank#}4{#/blank#}(visit) a friend who'd lived here for five years and I{#blank#}5{#/blank#}(shock) when I learnt she hadn't cooked once in all that time.

    While regularly eating out seems to{#blank#}6{#/blank#}(become) common for many young people in recent years, it's not without a cost. The obvious one is money; eating out once or twice a week may be{#blank#}7{#/blank#}(afford) but doing this most days adds up. There could be an even{#blank#}8{#/blank#}(high) cost on your health. Researchers have found that there is a direct link between the increase in food eaten outside the home and the rise in {#blank#}9{#/blank#}(weigh) problems.

    If you are not going to suffer this problem, then I suggest that the next time you go to your mum's home {#blank#}10{#/blank#}dinner, get a few cooking tips from her. Cooking food can be fun. You might also begin to notice the effects not only on your health but in your pocket.

    The Great Wall was listed as a World Heritage by UNESCO in 1987. Just like a dragon, it winds up and down across deserts, grasslands and mountains,{#blank#}1{#/blank#}( run) approximately 21,196 kilometers from east to west.

    The{#blank#}2{#/blank#}( construct) of the Great Wall was not that easy, {#blank#}3{#/blank#}drew heavily on the local resources for building materials. The walls were{#blank#}4{#/blank#}( original) built in the Spring & Autumn Period and the Warring States Period. Emperor Qin Shi Huang succeeded in his effort to have them joined together. Since then, the Great Wall{#blank#}5{#/blank#}( serve) as a monument of the Chinese nation throughout history.

    With {#blank#}6{#/blank#}history of about 2,700 years, some parts of the Great Wall are now {#blank#}7{#/blank#}ruins or have disappeared. However, the Great Wall of China is still one of the most appealing{#blank#}8{#/blank#}(attraction) all around the world owing to its historical significance. The best-known part of the Great Wall of China, Badaling, {#blank#}9{#/blank#}(locate) 43 miles northwest of Beijing, attracts thousands of national and foreign tourists every day.

    Today, the Great Wall{#blank#}10{#/blank#}(recognize) as one of the most important impressive architectural achievements in history.

    Diet and way of life are often a problem for teenagers. However, if you eat the right food and exercise {#blank#}1{#/blank#}(regular), you can feel better, look better and have more energy. So healthy eating along with regular exercise is probably {#blank#}2{#/blank#} first step to become fit.

    As a teenager, it is important to give your body the energy {#blank#}3{#/blank#} needs. For a healthy diet, you should eat mostly rice, bread, vegetables and fruit. The most important thing to remember when you choose food is to protect yourself {#blank#}4{#/blank#} some tricks. A number of people out there who want to make quick money are always fooling you into {#blank#}5{#/blank#}(believe) what they say so their products can sell well. Don't be tricked by them. What you need is just to trust a diet that {#blank#}6{#/blank#} (be) right for your body.

    Exercise is also something on {#blank#}7{#/blank#} you can depend to make you look good, feel good and be healthy. It is obvious that exercise is {#blank#}8{#/blank#} (benefit) to you. When you exercise, you build up the {#blank#}9{#/blank#} (strong) of your muscles and your body produces some chemicals that make you feel peaceful and relaxed.

    Follow the suggestions above,{#blank#}10{#/blank#}you will look and feel much better in no time at all.