问题 选择题

进入20世纪以来,几乎每年至少有一种鸟或哺乳动物从地球上消失,造成野生动物濒危和灭绝的主要原因是(    )

A.自然灾害

B.天敌过多

C.疾病流行

D.人为破坏

答案

答案:D

题目分析:威胁生物多样性的原因有滥砍乱发导致栖息地的破坏、偷猎、盲目引进外来物种、环境污染等,这些都属于人类的活动,人类对环境的改造幅度已经很大且地域扩张也很厉害,导至环境变化太大,很多物种的生活地域越来越小,且不能适应环境改造所带来的新的环境,以至于灭绝,如乱砍滥伐、过度放牧、不合理的开发(围湖造田、垦荒、湿地开发等)、使生存环境被破坏与改变,不再适和生物生存,导致野生生物的濒危或面临灭绝,所以此题答案为D。

点评:此题较易,理解并掌握造成野生动物濒危和灭绝的主要原因,结合题意,即可正确解答。

完形填空

      Have you ever noticed that the more you have the more you want? Let's face it. Thinking our life is good enough doesn't e naturally to many people. When we have high expectations of everything in life, we will run into disappointment. Only when we are aware that needs are different from desires can we live with satisfaction.  小题1:

   小题2:  Most people want things to be better than they are, or when things are going well, we forget to appreciate what we have. Learn to reflect on how much better things are than they could be. Write down 5 things you are grateful for right now.

When we hold onto regrets from decisions we have made, it can really poison our well-being. Many people regret something they can no longer change, which ends up holding them back from moving forward in a more positive manner.  小题3:  so work to stay present and be mindful of the cur- rent moment to find more joy and fulfillment.

When we use other people as the measuring stick for our personal success and quality of life ,we are likely to be less satisfied. Social parisons can provide useful information when we try to learn from others. but they also hold our perspective in a discontented position. 小题4:

When you focus on your big ambitions and future goals, you might neglect the daily pleasures that surround you.  小题5: Stay present and focus on the task you're undertaking at the moment .Don't let the life pass you by because you're always on the go and distracted by ambitions.

Practice looking at life through the lens(镜头)  of contentment and it will bee more natural.

A.Learn to create chances to achieve your goal.

B. What you should do is to put yourself in a good mood.

C. Here are a few ideas to help you be happier with what you have and who you are.

D.Focus on what you are thankful for.E. What happened in the past is done and gone.

F. Compare yourself less with others so you can be satisfied more.

G. Learn to slow down and absorb the wonder and beauty  around you.

多项选择题