办法:。
理由:。
①在保障全球安全的国际合作中有所作为
②有集团优势地位和强大的国际经济影响力
③是实现多边主义的最佳场所和主要机构
④坚持以共同体方式实现各成员国共同目标
——据葛剑雄《中国人口发展史》
材料二:
19世纪70、80年代,清政府向美国和欧洲分批派遣留学生,总计200余人。留学生侧重学习军事或与之密切相关的各门专业知识。多数人回国后凭借西学专长,得到了清政府的重视和任用,如严复、詹天佑等。
——摘编自《近代留学生与中外文化》
甲午战后,赴日留学出现高潮,到1905年,留日学生达8000余人,其中多为自费。在孙中山发动反清革命中留日生成为骨干力量,辛亥革命时留学生起到了关键作用,如邹容、黄兴等。民国时期,从世界各国归来的留学生成为社会变革的核心力量。他们中涌现出一批中国现代自然科学、社会科学的奠基者和代表人物,而且随着中国革命的发展,产生了一些马克思主义理论家和革命家。
——摘编自《百年留学潮与中国现代化》
( 1 )提出问题:鼠妇会选择阴暗的环境吗?
( 2 )作出假设:.
( 3 )制定并实施探究方案:在铁盘内放上一层湿土,一侧盖上不透光的纸板,另一侧盖上透明的玻璃板,在铁盘两侧的中央处各放5只鼠妇,观察鼠妇的行为.该实验的变量是.为了得出较准确的结论,不能在铁盘两侧中央各放1只鼠妇,原因是.
( 4 )分析结果,得出结论:该同学对上述实验重复了10次,结果如下表:
环境 |
第一次 |
第二次 |
第三次 |
第四次 |
第五次 |
第六次 |
第七次 |
第八次 |
第九次 |
第十次 |
明亮 |
4只 |
0只 |
2只 |
4只 |
3只 |
3只 |
5只 |
4只 |
3只 |
2只 |
阴暗 |
6只 |
10只 |
8只 |
6只 |
7只 |
7只 |
5只 |
6只 |
7只 |
8只 |
为了使实验结论更准确,应对上述数据做怎样的处理?.
( 5 )从中得出的实验结论是.
( 6 )表达和交流.
JLetter 1 Whatever I do, I always think about if other people will like it. How can I stop worrying about what they think? —Eva, 14, Illinois |
JLetter 2 My dream is to be on the Olympic team for gymnastics. My dad thinks I started too late and I'll never be able to make it. He puts me down, but I want his support. What should I do? —Erica, 9, Texas |
JLetter 3 What should I do if I failed a test? I'm afraid to tell my mom because she might get mad at me and I can't play soccer. And soccer is like the world to me. —Ashley, 12, Wisconsin |
JLetter 4 I just moved and I'm kind of shy, so how do I make new friends? —Jessica, 11, Canada |
Dr. Molly's Answer ① You should tell him about your dream and that if you work really hard, it might happen even though you started late. The sooner you tell your dad how you feel, the sooner you'll be able to work on making your dream come true. |
Dr. Molly's Answer ② Nobody knows you at your new school. You have nothing to lose, so gather up all your courage and go over to someone who looks friendly and introduce yourself. You can ask that person about your teacher or the other kids in your class to break the ice. Good luck! |
Dr. Molly's Answer ③ It's better to tell your mom the truth than for her to find out another way. When you tell her, explain why you failed the test. Ask her if she can help you study in the future, so you'll do better on your tests and also have time for the soccer you love. |
Dr. Molly's Answer ④ Just be yourself and try not to care about what others think. The more you think about it, the worse you will feel. Always act strong and confident. Even if you are a little unsure of something, don't doubt (怀疑) your abilities to do things right. Just relax. |
1)时间:下周五晚六点半;
2)地点:市民中心;
3)诗词比赛的意义。
注意:
1)词数100左右;
2)可以适当增加细节,以使行文连贯。
Dear Adam,
Yours,
Li Hua