动物的学习行为一旦形成，就不会改变．（判断对错）

阅读下面短文，从各题所给的A、B、C、D四个选项中选出最佳选项。

D

    It happens every night—bedtime. But what if you're not sleepy? Should you still go to bed if you are just going to lie there with your eyes wide open? It's a problem that has been around as long as there are people trying to sleep.

    You might be excited by something you did in the day. You might be nervous about what you're going to do the next day. Maybe you don't like sleeping alone in your room. Maybe you have frightening dreams. All of these are possible reasons for your sleeping problem. However, there are some steps you can take to help you solve it.

    One thing that can help is talking to a parent or another trusted adult about what you're worrying about at bedtime. For example, if you're nervous about taking a test, or upset about being teased (被嘲弄) at school, it can really help to tell somebody. Knowing that somebody has heard you can help ease your mind so that you can have a good rest.

    Sleeping in a comfortable bed in a quiet and cool room is a good choice. If there's anything in your room that makes you feel uneasy or anxious at night, like a picture that looks strange in the dark, or a noisy faucet (水龙头) in the bathroom, be sure to ask your parents to move or fix it. Make sure electronics, such as mobile phones or iPads, are kept away from your bed. They can keep you excited, making it harder for you to fall asleep.

    If you are usually restless around bedtime, doing certain things to relax beforehand may help you fall asleep. Try to take more time to wind down by taking a warm bath, or listening to a bedtime story at least 30 minutes before you go to sleep. It also helps to follow a bedtime routine and go to sleep at the same time every night. As a result, your body will get the message that it's almost time to sleep. Your body will know to start feeling tired.

    In order to find the right solution for you, it's possible that you understand what exactly is keeping you up at night. Getting a good night's sleep is worth the time and effort of finding the right solution to your sleeping problem.

任务型阅读
    How do you stay true to yourself when you're surrounded by friends and / or family that have an opinion on everything you do? It's not easy!____ Here are 4 tips which can help you live a dynamic (充满活力的) life.____
    Stay true to yourself by listening to the only opinions that really matter—your own and those from people who believe in and encourage you. Deep down you know yourself better than anybody else.
    Don't fear people.
    ____ The reason most people don't take risks, or live on the edge is the fear of what others might think of them. If you want to live the life you truly deserve, you must give up the need to be liked by everybody.
    Value yourself and your choices.
    When you do, others will too. Own the choices you make in your life.____
When you believe in yourself, in time, others will believe in you too. Show confidence in your choices, and what you stand for whether others agree or not.
    Focus on appreciation.
    No matter what the circumstances are, there is always something to be grateful for. All successful people ask, “What am I grateful for? How can I improve my situation and use these tough times to inspire others?”____
    These steps, if applied, will help you transform your lifestyle and productivity.
A. Focus on your own talents and strengths.
B. Never let others' opinions guide your choices.
C. Treat every person equally as they are important.
D. When you doubt yourself others will doubt you.
E. Stay fearless in everything you will have to do.
F. Be thankful to life and be helpful to others, and you'll lead a successful life.
G. However, there are great possibilities that you can lead the life you really want.

下列现象中，质量发生变化的是（     ）

2015年向世界推出了一系列中国倡议、中国方案，在经济、政治、安全等领域产生广泛深远的影响。变革世界，中国担当，中国将积极参与全球治理。这说明中国（   ）

①全球霸主地位已初露端倪           

②愿意承担更多但相宜的国际责任

③积极争取参与制定国际规则         

④主张颠覆性改变旧的国际秩序