In order to know a foreign language thoroughly, four things are necessary. Firstly, we must understand the language when we hear {#blank#}1{#/blank#} spoken. Secondly, we must be able to speak it ourselves correctly with {#blank#}2{#/blank#} (confident) and without hesitation. Thirdly, we must be able to read the language, and fourthly, we must be able to write it. We must be able to make sentences that are {#blank#}3{#/blank#} (grammatical) correct.

    There is no easy way to success {#blank#}4{#/blank#} language learning. {#blank#}5{#/blank#} good memory is a great help, but it is not enough only {#blank#}6{#/blank#}(memorize) rules from a grammar book. It is not much use learning by heart long lists of words and {#blank#}7{#/blank#} meanings, studying the dictionary and so on. We must learn by using the language. {#blank#}8{#/blank#} we are satisfied with only a few rules we have memorized, we are not really learning the language. “Learn through use” is a good piece of advice for those {#blank#}9{#/blank#} are studying a new language. Practice is important. We must practise speaking and {#blank#}10{#/blank#}(write) the language whenever we can.

    An important quality in a neighbor is consideration for{#blank#}2{#/blank#}. People should not do things{#blank#}3{#/blank#}will disturb their neighbors unnecessarily. For example, television sets need not be played at full volume (音量）{#blank#}4{#/blank#}loud pop music should not be played very late at night. By avoiding things likely to upset your neighbors, you can enjoy{#blank#}5{#/blank#}friendly relationship with them.

An equally important quality is tolerance. Neighbors should do all they can to avoid disturbing other people，{#blank#}6{#/blank#}there are times when some level of disturbance is unavoidable.{#blank#}7{#/blank#}neighbors want to get along well with each other, they have to show their tolerance. In this way, everyone will live {#blank#}8{#/blank#}peace.

In 1990, over 100 countries signed {#blank#}1{#/blank#} international agreement to make it illegal to buy or sell ivory, which is mainly used for jewelry. Most ivory is made from the tusks(象牙) of African elephants. These tusks are {#blank#}2{#/blank#}(terrible) valuable—one pair is worth more than three times the income of an African farmer or a factory worker in a year.

    Hunting elephants was so profitable {#blank#}3{#/blank#}from 1979 to 1989 the number of elephants in Africa fell from 1.3 million to 600,000. It was feared that by the year 2020 there would be none {#blank#}4{#/blank#}(leave). However, thanks{#blank#}5{#/blank#} the international agreement, there {#blank#}6{#/blank#}(be) much less illegal hunting since 1990.

    But considering {#blank#}7{#/blank#}(vary) of aspects, it costs a lot of money to preserve elephants. Games wardens (看守人) must be hired to protect them. Land must be set aside for them, and when they destroy a farmer's crops, the farmer must {#blank#}8{#/blank#}(pay) compensation.(赔偿金)

    Zimbabwe and four other African countries say that some of the elephants should be killed legally. This would help keep the population stable, and selling the ivory would help pay for preserving the elephants. But conservationists say that {#blank#}9{#/blank#}(make) ivory legal to sell would lead to even more illegal hunting. Others say {#blank#}10{#/blank#}is wrong is to kill elephants because they are sensitive animals that feel emotional pain at the death of other elephants.

    According to a review of evidence in a medical journal, runners live three years {#blank#}1{#/blank#}(long) than non-runners. You don't have to run fast or for long{#blank#}2{#/blank#}(see) the benefit. You may drink, smoke, be overweight and still reduce your risk of {#blank#}3{#/blank#} (die) early by running. While running regularly can't make you live forever, the review says it {#blank#}4{#/blank#} (be) more effective at lengthening life{#blank#}5{#/blank#} walking, cycling or swimming. Two of the authors of the review also made a study published in 2014{#blank#}6{#/blank#}showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all {#blank#}7{#/blank#}(cause).

    The best exercise is one that you enjoy and will do. But otherwise… it's probably running. To avoid knee pain, you can run on soft surfaces, do exercises to{#blank#}8{#/blank#}(strength)your leg muscles(肌肉),avoid hills and get good running shoes. Running is cheap, easy and it's always{#blank#}9{#/blank#}(energy).If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give{#blank#}10{#/blank#}a try.

Marty is a {#blank#}1{#/blank#}(able) but a fairly positive person who never feels {#blank#}2{#/blank#}(annoy) for himself. In other words, he has learned to adapt to his disability. Marty always tries hard to live {#blank#}3{#/blank#}good life. He is realistic{#blank#}4{#/blank#} his disability {#blank#}5{#/blank#}he never stops doing as much as he can. He keeps {#blank#}6{#/blank#}(he) busy doing things like{#blank#}7{#/blank#}(write) and computer programming that do not require{#blank#}8{#/blank#} (physics) strength.

He has friends with whom he has access to going to movies and football matches and he has lots of pets. He also studies hard and never has absence from school. He is a {#blank#}9{#/blank#}(mental) strong {#blank#}10{#/blank#} (depend) boy. All in all, he is able to live as rich and full a life as everyone else.