Asa student of university that has a long break between university semesters, theuniversity requires all students to do one of the following for one monthduring the break:
●students must take a course on the subject that has no direct connection totheir majors of study.
●students must volunteer to work in the city where the university is located ortheir hometowns to improve some aspects of life of the city or their own town.
whichone do you think is more beneficial for students in their university. Why?

Sometimeswe are assigned to work in a group on a project. Do your agree or disagree thefollowing statement? The group will be helped more by members who are willingto do what other group members want them to do than by those who stronglyinsist that things should be done in a different way.

Ratherthan help their children do schoolwork, parents should encourage their childrendo their homework independently.

Itis better to relax by watching a movie or reading a book than doing physicalexercises.

Itis better for people to have friends who are intelligent than to have friendswho have a good sense of humor.

Someyoung people are free in the evenings or have days off at school, which way canbring them the most benefit?
●to accumulate work experience by a part-time job or volunteering in a community
●learning to play a sport
●learning to play a musical instrument

At some universities, students take part in making decisions about the issuesthat affect daily life of everyone on campus, such as how many hours that thelibraries should be open each day or what kinds of food should be served in thecafeteria. But at some universities, experts are hired to make these decisions,students almost never involved. Which approach do you prefer and why.

Do you agree that it is better to work for business owned by someone else thanto work for the business of one’s own family

A city wants to help teachers of its high school students （age14-18）improvetheir teaching. It is considering two plans:
1）Choose a small group of excellent teachers; these teachers will attend a classled by an expert for additional training in how to teach effectively, and theywill then come back to their schools and provide that training for otherteachers in school.
2）Provide additional training in teaching effectively for high school teachers,using online material that each teacher will study individually.

Students aged 13-18 are taught different subjects by different teachers whileyounger students are taught by only one teacher all day long. Some peoplesuggest it would benefit young students to be taught by different teachers. Doyou agree with this view? Why or why not?

走路比游泳省力，先说动物里游泳的，鱼和鸭子，鸭子遇到的wave什么的更大，阻力大，鱼在水下，阻力小。鸟因为要支撑自己，鱼在水里就不用，所以飞行也耗力。走路因为涉及加速减速，这个过程就最耗力。骑单车的时候的动作就导致需要消耗和跑步一样的力。

New Europeans Settle on America
内容回忆：因为开垦森林的成本比较高，欧洲人利用当地已开垦过的森林。但是因为人口不断增加，资源不再满足人口的需求，他们只能开始自己砍伐森林，砍伐森林有两种方式，直接砍伐和使树枝脱落。后来，农民们发现后面一种方法需要很多肥料，农民们燃烧树枝制作草木灰维持养料的需求。农民们还采用了美洲人的方式，几种作物同时生长，互相起促进作用。

songbird的migration减少，首先是某人发现了这个现象，在60s-80s migration减少50%，然后就有人认为这不是个general的现象，但是接着就根据unusual distribution 发现是general，因为森林碎片化引起了ecosystemchange，所以migration减少。