China has the largest population in the world. The large population has caused many {#blank#}1{#/blank#} /′səʊʃl/ problems for the whole nation. For example, there is {#blank#}2{#/blank#} (little) living space for each family. And it is not easy {#blank#}3{#/blank#} find jobs. It's also hard for China to {#blank#}4{#/blank#}/sə′plaɪ/ energy and water to satisfy people's daily needs. Most cities are more crowded {#blank#}5{#/blank#} before, and the traffic is much heavier. {#blank#}6{#/blank#} (nature) environments are becoming {#blank#}7{#/blank#}/wɜ:s/. China has taken many measures to control the population. And the measures have worked well in it. {#blank#}8{#/blank#}, our government still faces a serious population problem. So we have a long way to go.

    Sitting at a desk in a classroom all day can be pretty boring. With a bike, the reading class can be {#blank#}1{#/blank#}（interesting） than before.

    The teachers in {#blank#}2{#/blank#}school in the US have tried this. The Read and Ride program {#blank#}3{#/blank#}（begin） five years ago. As part of the Read and Ride program, the teachers change the students'{#blank#}4{#/blank#}（desk） into exercise bikes. With this program, one classroom in the school has enough bikes for each student in class.{#blank#}5{#/blank#}is possible for the students to ride bikes and read books at the same time. Even common classrooms have one bike at the back of them. The students who cannot sit still can use the bike {#blank#}6{#/blank#}（do） exercise.

    The exercise bikes are not only good for the students' health {#blank#}7{#/blank#}helpful in improving the efficiency（效率） of the students' study.{#blank#}8{#/blank#}students are bored with study, they can relax themselves by riding the bikes for a while.

    After keeping trying the program for one year, teachers found that students who took part {#blank#}9{#/blank#}the program did much better in reading tests.{#blank#}10{#/blank#}amazing it is!

    I used to be strongly against telling lies. I can't stand (忍受) lies. {#blank#}1{#/blank#}, a white lie changed my idea.

    Several days ago, I invited some friends {#blank#}2{#/blank#}(get) together at a bar to celebrate my birthday. They promised to meet {#blank#}3{#/blank#}at 5 p.m. When that day came, I got to {#blank#}4{#/blank#}bar early. To my disappointment (失 M), only one friend arrived by 4:50 p.m. Did they forget my birthday? I had to keep{#blank#}5{#/blank#}(wait) for them. Most of them said that they were {#blank#}6{#/blank#} the way while some said they were still at home. I realized that they wouldn't come on time. At 5 p.m., there {#blank#}7{#/blank#}(be) just three people with me. I sat on my chair {#blank#}8{#/blank#} (happy). How could they do this to me? They didn't care about me! I got so angry that I decided to leave. But just at that moment, a group of my {#blank#}9{#/blank#} (friend) came into the room with a big cake in their hands, singing "Happy birthday to you". I was so{#blank#}10{#/blank#}(surprise). Ever since then, I didn't hate telling white lies anymore.