Many teachers believe that the responsibilities for learning lie with the student. {#blank#}1{#/blank#} a long reading assignment is given, instructors expect students to be familiar with {#blank#}2{#/blank#} (inform) in the reading even if they do not discuss it in class or take an examination. The ideal student is considered to be one who is motivated to learn for the sake of learning, not the one interested only in getting high grades. Sometimes homework is returned {#blank#}3{#/blank#} brief written comments but without a grade. Even if a grade is not given, the student is {#blank#}4{#/blank#} (responsibility) for learning the material assigned. When research {#blank#}5{#/blank#} (assign), the professor expects the student to take it actively and to complete it with minimum guidance. It is the student's responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain {#blank#}6{#/blank#} a university library works; they expect students, {#blank#}7{#/blank#} (especial) graduate students, to be able to exhaust the reference origins in the library. Professors will help students who need it, but prefer that their students should not be too dependent on them. In the United States, professors have many other duties {#blank#}8{#/blank#} teaching, such as administrative or research work. Therefore, the time {#blank#}9{#/blank#} a professor can spend with a student outside of class {#blank#}10{#/blank#} (limit). If a student has problems with classroom work, the student should either approach a professor during office hours or make an appointment.

    When I left for the United States to study. I had butterflies in my stomach. I was nervous because I was going to {#blank#}1{#/blank#} new place with new people and new customs. I couldn't even understand {#blank#}2{#/blank#}(they)language. Everything was different {#blank#}3{#/blank#} my own country. There was nobody that I could talk to. I just had my husband, {#blank#}4{#/blank#} was a new person for me, too.

    It was a sad moment when I had to say goodbye to my family and friends. I didn't want {#blank#}5{#/blank#}(leave)my hometown because I {#blank#}6{#/blank#}(grow) up there and had wonderful {#blank#}7{#/blank#}(memory) of the place. So, {#blank#}8{#/blank#} (think)about all these changes made me nervous and I was {#blank#}9{#/blank#}(worry)about my new life. But studying abroad was a decision that I made myself. I had to continue and accept the challenge. I looked forward to {#blank#}10{#/blank#}(visit)my family in the summer vacation.

    Kids who are old enough to surf the Internet can get to know the world. But it can also bring problems. For example, some of the websites are not proper for kids, which can lead to kid's growth problems. That's why it's important to know what your kids see and hear on the Internet.

    When it comes to safety problems, it's wise to take advantage of online protection tools. They will control your kids' seeing and using adult material. Many Internet service-providers (ISPs) provide parent-control choices to prevent certain material from coming into a computer. You can also get software (软件) that keeps your child from certain sites based on a “bad site” list that your ISP creates. Besides, keep the computer in a common area, not in their own bedrooms, where you can keep a close eye on their activities.

    Discuss the dangers of talking with strangers online and remind your kids that people online don't always tell the truth. Tell your kids never to give strangers their personal information, such as the address, phone number, school name or location. Tell them never to exchange photos with strangers in the chat rooms online, which will put the families at risk. Tell them never to agree to meet anyone from a chat room in person. Tell them never to reply to a dangerous email, message, post or text. Give your kids some encouragement to let them tell you about any communication or conversation that is dangerous. Nothing can make sure that they'll be kept away from 100% of the risks on the Internet. So it's important for you to spend time online together to teach your kids proper online behavior and educate them about online risks so they can surf the Internet safely. Taking an active part in your kids' Internet activities will help ensure that they benefit from the wealth of valuable information it offers.

    If your child spend long hours online, especially at night, with people you don't know, you should take notice of your kids behavior. If your child suddenly turns off the computer when you walk into the room, ask why. Unwillingness to discuss online activities is another sign to watch for.

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    Sometimes willpower is a lot like the television remote control- hard to find just when you want it most. Whether you're trying to lose weight, stop smoking, get to the gym regularly, developing your sense of willpower is an important part of changing any behavior. Breaking a bad habit or forming a new and healthy one can be difficult. But there are ways to increase your willpower.

    Don't try to change your social situation, win a high position and lose weight all on the same morning. Set one clear, specific goal and make a realistic plan for achieving it. Extra willpower sometimes requires extra energy, so don' push yourself too hard. Focus on one goal at time.

    Whatever your goal is, don't expect to achieve it immediately. If you are trying to break a caffeine habit, start by replacing your morning cup of coffee with a glass of water, instead of vowing （发誓） never to drink coffee again Congratulate yourself on the small achievements that will lead to a larger one. These successes help your willpower grow.

    Improve your willpower by a support network. Ask friends, family or colleagues for help and tell them exactly how they can help. If your credit card bills have increased sharply, for example, let friends know that you are reducing costs. Suggest having a common dinner instead of meeting at an expensive restaurant Find a support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information there.

    If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an extra set of workout clothes in your office as a reminder to stop by the gym on the way home. Giving up smoking? Don't go to bars or restaurants where you might be attracted to light up.

    Sometimes changing your behavior requires more than willpower. If you are struggling with a bad habit or want to make an important lifestyle change, seek the support of a professional. An expert may be able to provide related support or medical treatment if necessary.

    Over time I have been changed quite a lot. I began as a {#blank#}1{#/blank#} machine in France in 1642. Although I was young I could {#blank#}2{#/blank#} difficult sums. I developed very slowly and it {#blank#}3{#/blank#} nearly two hundred years before I was built as an analytical machine by Charles Babbage. After I was {#blank#}4{#/blank#} by an operator who used cards with holes, I could “think”

    {#blank#}5{#/blank#} and produce an answer quicker than any person. At that time it was {#blank#}6{#/blank#} a technological revolution and the start of my “{#blank#}7{#/blank#} intelligence”.

    A fresh-faced batch of teenagers just began a new school year, but will they get the most out of it? In the mornings, many are forced to get to school much too early. And at night, screens are a temptation that's hard to resist. This double whammy (双重灾难) is a perfect lesson in sleep deprivation (剥夺).

    Three out of every four students in grades 9 to 12 fail to sleep the minimum of eight hours that the American Academy of Medicine recommends for their age group. In most cases, insufficient sleep results in reduced attention, preventing students' progress and lowering grades. More alarmingly, sleep deprivation may lead to physical and emotional problems.

    It is important to understand why teenagers have a particularly hard time getting enough sleep, and what adults need to do to help. First, a reminder of the basic biology: Adolescents are no longer the morning larks of their younger years. They become rewired as night owls, staying awake later and then sleeping in. This is mostly driven by changes in the way the brain responds to light.

    New technology habits aren't helping. More teenagers now turn to activities involving screens at night. The growth in screen time is particularly problematic for sleep. The blue light emitted by LEDs, TVs, tablets and smartphones suppresses the body's secretion (分泌) of melatonin, the hormone that signals it's time to sleep. Overdosing on screens at night effectively tells the brain it's still daytime, delaying the body's cues to sleep even further.

    Parents should inform their kids of the time that can be spent on screens, and praise children who show signs of regulating their own media consumption. In the hour before bedtime, there should be a suspension on bright lights in the home, avoiding devices and harsh LED bulbs in kitchens and bathrooms.

    In 2016, the American Academy of Pediatrics recommended that middle and high schools start no earlier than 8: 30 a. m., a policy now backed by the American Medical Association and many other health organizations.

    Parents also need to join forces with community leaders, sleep scientists, health professionals and educators to put school start times on the local, then state agendas.

    Whenever schools have managed the transition to a later start time, students get more sleep, attendance goes up, grades improve and there is a significant reduction in car accidents.