Ever since middle school,my sister and I have dreamed about{#blank#}1{#/blank#}(take) a great bike trip.After graduating{#blank#}2{#/blank#}college,we finally got the chance to cycle along the entire Mekong River,{#blank#}3{#/blank#}runs past many{#blank#}4{#/blank#}(country) and into the Pacific.{#blank#}5{#/blank#}my sister didn't know the best way of getting places,she insisted that the trip{#blank#}6{#/blank#}(organize) by her. And her{#blank#}7{#/blank#}(determine) look showed that she had made up her mind.{#blank#}8{#/blank#} (Luck),the trip was great fun.It was so amazing{#blank#}9{#/blank#}we found{#blank#}10{#/blank#}(we) satisfied with it.

    Africa has been called the “dark continent” for a long time because {#blank#}1{#/blank#} lacks technology, electricity and other {#blank#}2{#/blank#} (achieve) of the modem world. However, it is beginning to change. Africa is starting to catch up with {#blank#}3{#/blank#} (industry) countries and the driving force behind this new development is the Internet and the World Wide Web.

    Now Africa is the fastest {#blank#}4{#/blank#} (grow) place on the earth. So far, governments, businesses and individuals {#blank#}5{#/blank#} (realize) that in order to develop quickly, modem technology is needed.

    Only ten years ago a SIM card used to cost about $100 in Niger. Today you can buy one for under $2 and phone calls have become much {#blank#}6{#/blank#} (cheap), too. As a result, 23% of its population are now mobile phone users.{#blank#}7{#/blank#} (equip) with this new service, people can connect to the Internet easily. Many Nigerians have access {#blank#}8{#/blank#} the World Wide Web now.

    In Ethiopia farmers can now get the prices of their farming products in real time. Until recently, most of the small farmers of the country did not know {#blank#}9{#/blank#} the prices of their products were at {#blank#}10{#/blank#} certain time. Today, they can phone in and get an up-to-the-minute report on prices.

    People have all turned to sad music to make themselves feel better at some point in their lives,

    {#blank#}1{#/blank#}why does the music with double or even triple(三倍) sadness help drag people out of low spirits?

    A new study throws light on what's going on inside people's brains when they match their music to their feelings, and it looks as if sad music can be enjoyable, rather than{#blank#}2{#/blank#}(simple) depressing. Music of this sort can arouse positive memories in people's life, thus {#blank#}3{#/blank#}(lift)their mood.

    Psychologist Adrian North from Curtin University in Australia says there{#blank#}4{#/blank#}(existence) two groups of possible explanations for why people enjoy listening to sad music like this——one from social psychology, and the other from cognitive neuroscience(神经学).

    {#blank#}5{#/blank#}terms of social psychology, one idea about this is that people will feel{#blank#}6{#/blank#}(good) about themselves if they focus on someone who's doing even worse. Everything's going to be okay, because this person is having {#blank#}7{#/blank#}even worse day than they are.

    Another idea from social psychology is that people like to listen to the very music {#blank#}8{#/blank#} shows their present life circumstances, because this kind of music makes them feel they are understood. With their emotions{#blank#}9{#/blank#} (share), they definitely get a certain amount of comfort.

    So, the{#blank#}10{#/blank#} (conclude) again—sad music does cheer people up, and it works far better than happy music, in most cases.

    For many young people, going to university is one of the most important {#blank#}1{#/blank#} (stage) of their lives. It is the time when young people will move out of {#blank#}2{#/blank#} (they) home to live with other people, often strangers. {#blank#}3{#/blank#} (especial) in the U.S, people often travel very far {#blank#}4{#/blank#}home to study. It is a time to be {#blank#}5{#/blank#} (independence).

    At university, you will {#blank#}6{#/blank#} (teach) by lectures and professors who are leading figures in their study. The opportunity to learn from and to discuss with them is {#blank#}7{#/blank#} drives some people to apply to university. Students are required to choose a major that they wish to study. Apart from the {#blank#}8{#/blank#} (academy) benefit, life at university also can allow students {#blank#}9{#/blank#}(develop) their interests in many fields.

    Therefore， university is a place {#blank#}10{#/blank#} you attain knowledge, develop your values and accept those who may be different.

    At 3:42 a.m., everything began to shake. It seemed as if the world was at an end! Eleven kilometres {#blank#}1{#/blank#} (direct) below the city, the {#blank#}2{#/blank#} (great) earthquake of the 20th century had begun. It was felt in Beijing, {#blank#}3{#/blank#} is more than two hundred kilometres away. One-third of the nation {#blank#}4{#/blank#} (feel) it. A huge crack that was eight kilometres long and thirty metres wide cut across houses, roads and canals. Steam burst from holes in the ground. Hard hills of rock became rivers of dirt. In fifteen terrible seconds a large city lay {#blank#}5{#/blank#} ruins. The suffering of the people {#blank#}6{#/blank#} (be) extreme. Two-thirds of {#blank#}7{#/blank#} (they) died or were injured during the earthquake. Thousands of families were killed and many {#blank#}8{#/blank#} (child) were left without parents. The number of people who were killed or injured reached more than 400,000. Then, later that afternoon, another big quake shook Tangshan. More buildings fell down. Water, food, and electricity were hard {#blank#}9{#/blank#} (get). People began to wonder {#blank#}10{#/blank#} long the disaster would last.

    It used to be common to see US teenagers busy at fast-food restaurants cooking burgers and {#blank#}1{#/blank#} (clean) tables, especially during the summer vacation. {#blank#}2{#/blank#}, the scene is becoming less common.

    Instead of finding summer jobs, many US teenagers are spending {#blank#}3{#/blank#} (they) free time taking classes. According to The Atlantic, this change partly results {#blank#}4{#/blank#} the low teen earnings paying little toward the costs of college. For many students who are going to attend college, the money from summer jobs doesn't live up to their {#blank#}5{#/blank#} (expect) at all. Meanwhile, US teenagers' increasing interest in education {#blank#}6{#/blank#} (account) for this as well. They go to summer school to learn {#blank#}7{#/blank#} they might not have time for after they leave school, which {#blank#}8{#/blank#} (consider) as a wise choice.

    Despite this, a summer job is still believed to benefit teenagers. Early work experience is {#blank#}9{#/blank#} human activity that develops people's social skills. When kids are working, they gradually gain {#blank#}10{#/blank#} (practice) knowledge and understanding of the labor market.