题型:阅读理解 题类:常考题 难易度:普通
湖北宜昌夷陵中学2015-2016学年高一下学期英语期中考试试卷
根据短文理解,选择正确答案。
You may like chewing gum (口香糖) after meals to stop your breath smelling bad; or your mother might use a special neutralizer (调理剂) to protect her permed hair (烫发). But have you thought about the chemical principles behind such everyday actions?
On March 2, the Senior 3 students from the IB (International Baccalaureate, 国际文凭) classes at Beijing Huijia Private School presented their discoveries, all in fluent English. This kind of seminar is held every year to show the achievements of the IB chemistry experiment lessons offered by the school. IB is a qualification based on a common curriculum (课程) for students aged 16-18 in any country and is recognized by universities everywhere.
"Once I saw an advertisement for xylitol (木糖醇) gum," recalled Zhang Xinju. "Suddenly an idea came to my mind: are there any chemical reactions when the xylitol is working on our teeth?"
Zhang and his partner Bu Xuan visited several hospitals to try and find out. "Doctors know that xylitol can protect teeth, but few could explain how the chemical reactions happen," said the 17-year-old boy.
Presenting the results of their research in English to an audience of Chinese and foreign judges was never a problem for the students.
"Textbooks for IB students are in English, and our teachers speak in English," explained Wei Duan and Han Yu, whose research topic was "The Acid-Base Reaction (酸碱反应) in the process of Hair-Perming".
"In Senior 1 we often referred to Chinese textbooks, but we found we could understand and express it all in English by the second year."
Lu Jiang, the school's IB chemistry teacher and China's only IB vice-examiner, is proud that her students can apply scientific theories they learn in class to daily life.
"You might have learned these facts from you kindergarten teachers, but few think about the theories behind them," Lu said. "This kind of practice is intended to develop the scientific thinking they will need in their future studies."
There's so much to see and do in the coolest little capital. Here's our list of the top 5 must dos when you visit Wellington.
| Enjoy 360° views from the top of Mount Victoria Get a full view of the city and a great photo at the Mount Victoria Lookout. Watch the ships sailing in and plane taking off from Wellington Airport. |
| Ride the historic Wellington Cable Car The Cable Car is a Wellington mark. It runs from Lambton Quay up to Kelburn. At its top, there's a lookout, the Cable Car Museum, and Space Place at Carter Observatory. |
| Check out our world famous movie-making magic Get into the imagination and the skills of artists behind some of the world's most wonderful movies at the Weta Cave mini-museum, where you can find yourself in the world of the movie— The Lord of the Rings. |
| Have a close touch at Wellington Zoo Do you want to hand-feed a giraffe, play with a group of meerkats (猫鼬) or touch a cheetah's (猜豹) fur? All are possible at Wellington Zoo, the best little zoo in the world. |
| Discover our stories at Te Papa The national museum of New Zealand, Te Papa, is fascinating and fun for any age. The exhibits (展览) tell stories about each side of New Zealand in new and exciting ways. By the way, you can enter the Te papa museum for free. |
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