chemical
英 ['kem?k(?)l]
美['k?m?kl]
- n. 化學(xué)制品，化學(xué)藥品
- adj. 化學(xué)的
考試真題
- A drug is a chemical substance.
出自-2015年12月聽力原文
- The supervisor of the laboratory is beginning to get headaches and dizzy spells because she says it's dangerous to breathe some of the chemical smoke there.
出自-2011年6月聽力原文
- Muscle performance can also be affected by a phenomenon called "central fatigue", in which an imbalance in the body's chemical messengers prevents the central nervous system from directing muscle movements effectively.
2017年6月四級真題（第三套）閱讀 Section A
- It will drive producers of chemical fertilizers out of business.
出自-2016年6月閱讀原文
- In cases where sewage mud is used, expensive chemical fertilizer use can be avoided.
出自-2016年6月閱讀原文
- Way up north in the Canadian Arctic, seabirds are picking up dangerous chemicals in the ocean and delivering them to ponds near where the birds live.
出自-2016年12月聽力原文
- The bodies of fish and other meat eaters can build up high levels of the chemicals.
出自-2016年12月聽力原文
- Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea.
出自-2016年12月聽力原文
- People who live, hunt or fish near bird coloniesneed to be careful, the researchers say, The birds don’t mean to cause harm, but the chemicals they carry can cause major problems.
出自-2016年12月聽力原文
- We can tear apart the great grass cover of the western plains and pour toxic chemicals into the soil until the soil is dead and blows away in the wind.
出自-2013年12月聽力原文
- Chemical testing showed that over the two years before her death, she moved about every two months.
2015年12月六級真題（第二套）聽力 Section C
- Heating this chemical compound drives off carbon dioxide gas, leaving calcium oxide.
2018年12月六級真題（第二套）聽力 Section C
- The chemical composition of rainfall changes slightly as rain clouds move.
2015年12月六級真題（第二套）聽力 Section C
- The method relies on measuring how chemical variations in drinking water show up in people's hair.
2015年12月六級真題（第二套）聽力 Section C
- Although we may not be aware of chemicals like pheromones consciously, we give and receive loads of information through smell in every interaction with other people.
2015年高考英語上海卷 完形填空 原文
- But she expects using the chemical in some kind of industrial process-not simply "millions of worms thrown on top of the plastic".
2018年高考英語北京卷 閱讀理解 閱讀C 原文
- Changing levels of body chemicals called hormones not only make teenagers' bodies develop adult characteristics, but also make it hard for teenagers to fall asleep before 11 pm.
2017年高考英語浙江卷（6月） 閱讀理解 閱讀B 原文
- Her popular 1962 book Silent Spring raised awareness of the dangers of pollution and the harmful effects of chemicals on humans and on the world's lakes and oceans.
2016年高考英語全國卷1 閱讀理解 閱讀A 原文
- Hormones are chemicals which are produced by the body to control various body functions.
2016年高考英語四川卷 閱讀理解 七選五 原文
- In contrast, humans do not seem to be as gifted as other animals at detecting such chemicals.
2015年高考英語上海卷 完形填空 原文
- In study after study, it appears that these chemical conversations help the neighbors.
2017年高考英語全國卷2 閱讀理解 閱讀D 原文
- Many animals give off pheromones — natural chemicals that can be detected by, and then can produce a response in, other animals of the same species.
2015年高考英語上海卷 完形填空 原文
- Other experts say part of the problem is chemical.
2017年高考英語浙江卷（6月） 閱讀理解 閱讀B 原文
- So condors with high levels of lead are sent to Los Angeles zoo, where they are treated with calcium edta, a chemical that removes lead from the blood over several days.
2016年高考英語北京卷 閱讀理解 閱讀C 原文
- Some plants pump out smelly chemicals to keep insects away.
2017年高考英語全國卷2 閱讀理解 閱讀D 原文
- These chemicals come from the injured parts of the plant and seem to be an alarm.
2017年高考英語全國卷2 閱讀理解 閱讀D 原文
- They are affected by certain body chemicals.
2017年高考英語浙江卷（6月） 閱讀理解 閱讀B 選項(xiàng)
- What the plants pump through the air is a mixture of chemicals known as volatile organic compounds, vocs for short.
2017年高考英語全國卷2 閱讀理解 閱讀D 原文
- Where we use sound and sight to communicate, ants depend primarily on pheromone, chemicals sent out by individuals and smelled or tasted by fellow members of their colony.
2015年高考英語安徽卷 閱讀理解 閱讀D 原文
- 95 knit miniskirt in all its 2,300-pius stores around the world, it must rely on low-wage overseas labor, order in volumes that strain natural resources, and use massive amounts of harmful chemicals.
出自-2013年考研閱讀原文