综合写作：
Carolina Bays的形成假说。
Reading:
The Carolina Bays were formed by Meteorite impact.
The rim of one side is higher than the other side of the bay.
Mereorite explosion produced intensive heat to melt iron out of sand.
Meteorite explosion sufficient to form bulkyballs.
Listening:
If water flushed one side over period of time, it would cause the rim of one side higher than another. Scientists found underground water…
If the tempreture was so intensive, we could find glasses. But actually we haven't found yet. The iron maybe produced by chemical reactions.
Bulkyballs can be generated by lightening.
独立写作：
It is important to make sure that others know about your strengths and accomplishments; if you are not so,you will be never successful in life.
If people are unaware of your talents and other good qualities, you obviously will not stand out among your peers. To be successful you not only have to work hard, but you have to make sure others know you work hard, as well. Of course you should let others know of your strength and accomplishments, but the best way to let them know is by showing, not by just telling.
College applications-or applications of any kind-are a perfect example. Colleges want what kind of student you are and what kind of student you will be in college. You must show them that you are a good student and that you are interested in whatever you want to study. But in the essay, you cannot just state that you are a good student, are hardworking, and enjoy mathematics; you must show them. If you are interested in mathematics, then you probably did something in high school related to mathematics, such as the math club. In your essay, you must be sure to mention your participation in math club, but also activities your math club in order to show colleges that you will be active in your mathematics major. If you simply state that you like math, colleges will not be as impressed.
It is important to let others know of your achievements; otherwise you will not be successful in life. The field of science can provide many examples of the validity of this statement. In science, communicating your discoveries is as important as discovery things in the first place. Everybody knows that the scientists Watson and Crick discovered the double-helix structure of DNA. Many people are not aware that this model was first theorized by a female scientist working in the same lab as Watson and Crick. However, Watson and Crick published their findings before the woman published her own findings. In science, credit is given to whoever publishes first, so the Watson and Crick are given full credit for the discovery of the double-helix structure of DNA. In order to be successful, you must let other people know of your accomplishments.
Granted, there is a fine line between letting people know about your accomplishments and simply showing off. Nobody likes a show-off, so you must be careful not to rub people the wrong way with your success. People always say that actions speak louder than words, which is good advice to keep in mind when you are trying to let other people know of your success. Don't just tell people you're good at writing. Start a blog and show people how accomplished of a writer you are.
The key to success is to play to your strengths and to not be shy about showing other people your talents. (460 words)