题型:阅读理解 题类:常考题 难易度:普通
吉林省长春外国语学校2018-2019学年高二下学期英语开学考试试卷
Learn to cure cancer
A vaccine for cancer is in the works.
Lauren Landry and Chloe Tomblin are the scientists. They look in freezers(冰柜) for bacteria to use in the research. This research has its limitations—mostly because their lab is in a high school.
But Lauren, 16, and Chloe,17 both students are Western Reserve Academy in the US, aren't put off by the difficulties they face in their cancer immunology(免疫学) class.
“I hope we get to the point where we can get to a vaccine and write a paper,” Lauren said.
Both conduct research into how to engage the immune system in stopping cancer from forming.
Though the lab is in a high school, they don't use textbooks. The aim is to conduct real cancer research, either by testing the effects of substances on cancer cells or developing vaccines to target the growth of those harmful cells.
The idea for the class came from Robert Aguilar, who has taught at the private school for many years. Students spend the first year learning research techniques. In the second year, students swap(调换) their blue lab coats for white ones. By this stage they are well into their research projects.
“If first-years need any help, they can feel free to ask second-year students,” Aguilar said.
Students form groups to conduct their research. One pair of students has researched the effect of capsaicin(辣椒素) on killing cancer cells. Another has tested the effect of caffeine(咖啡因) on the growth rate of breast cancer(乳腺癌) cells.
But few students get to the point in their research of experimentation with mice, Aguilar said. Lauren and Chloe hope that they can make decent progress in their work.
“We know they're going to be used for good,” Lauren said. “If it does or doesn't work, it still has a huge impact.”
Aguilar teaches the students that even research that doesn't work still contributes to science in some way. He tells students that “the best part of research is failing a lot”.
Elephant Reserve Country: Thailand This is a working vacation at a wildlife centre. Anyone can become a volunteer if he/she agrees to help the elephant keepers with tasks. Daily tasks Gather the elephants at 6:30 am. Take them to look for food in the forest. Clean the enclosure(围场). Swim with the elephants in the lake in the afternoon. If volunteers want to relax after work, they can watch satellite television. How this vacation helps If these elephants hadn't been rescued, they would still be living on the streets of Bangkok. The rural environment is much better for them than the urban environment where there is lots of pollution. Your Comment "I love working with these huge gentle animals." |
Gorilla safari(观赏野兽的旅行) Countries: Kenya, Rwanda and Uganda Departures(出发): 2—3 departures per month from Aug. to Dec. Extras: permit £220 If you're lucky, you'll see lions, elephants and rhinos during this safari. The highlight(最好的部分) of the trip is the opportunity to see gorillas in the mountain forests. However, you must be in good health — if a gorilla caught a cold, it would be extremely harmful to its whole family. How this vacation helps There are only about 600 gorillas left in the world as human activity has reduced the area where they can live. When you buy a permit, this will pay for the protection of the national park. Your comment "I'll surely go back as soon as I have enough money!" |
Polar bear watching Area & Country: Arctic, Canada Departures: sixty trips between Oct. 1—Nov.19. Every October and November groups of polar bears gather in Hudson Bay. As they are normally lonely creatures, this is unusual. The bears wait for the ocean to freeze so that they can hunt for seals, so this is the perfect opportunity to see them. Extra activities include dog sledding(狗拉雪橇) and a night trip to see the Northern Lights. How this vacation helps If the Arctic ice cap melts due to global warming, polar bears will be in danger. We give a share of our profits(利益) to the charity that protects polar bears. Your comment "These terrible bears get all the liquid they need from their food." |
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