I’ll __________ you some grapes after the trip.
A. burn B. allow
C. add D. bring
九年级英语单项填空简单题
I’ll __________ you some grapes after the trip.
A. burn B. allow
C. add D. bring
九年级英语单项填空简单题查看答案及解析
You can buy some __________ in the post office.
A. stamps B. novels C. desserts D. grapes
九年级英语单选题中等难度题查看答案及解析
Some students were too tired ________on after the tiring trip .
A. not to walk B. walk C. to walk
九年级英语单项填空中等难度题查看答案及解析
﹣How often do you have a school trip this term？
﹣．Since several accidents happened to some schools，all the school outdoor activities have been asked to stop．（ ）
A．Always B．Hardly ever
C．Sometimes D．Often
九年级英语单项填空中等难度题查看答案及解析
When we exercise hard, we burn fat. But have you ever wondered where exactly the fat goes?
Some doctors think that fat is changed into heat and released in the air. Others think the body burns it. Some even joke that the fat fairy comes and takes it. That is why you always weigh less in the morning.
Now a new study from the University of New South Wales in Australia reveals the mystery. “the correct answer is that most of the mass is breathed out as carbon dioxide(二氧化碳). It goes into thin air,” says the study’s lead author, Ruben Meerman, to Science Daily. Scientists followed the atoms(原子) in 10 kilograms of fat as they are lost. They found that 8.4 of those kilograms are breathed out as carbon dioxide through the lungs. The rest of the weight —1.6 kilograms— becomes water that leaves the body in the form of fluids(液体) such as urine(尿), sweat, breath and tears. “None of this is obvious to people because we can’t see the carbon dioxide gas we breathe out,” said Meerman.
Does that mean you can lose more weight by breathing more? It is not as easy as you think. Breathing more than the body’s metabolic rate(新陈代谢) can make you uncomfortable. You may feel dizzy and become unconscious(无意识的), according the study. So how to lose weight healthily? The key is to eat less and move more. You many have heard this many times.
During a day, a 70kg person breathes out about 200g of carbon dioxide. So if the same person wants to lose weight, he or she can do some light exercise, for example, jogging. This can help lose 240g of carbon dioxide.
1.According to the new study, where does our fat go when we exercise a lot?
A.It is changed into heat and given off in the air. B.The body burns it.
C.The fat fairy comes and takes it. D.Most of it is breathed out as carbon dioxide.
2.What will happen to people if they breathe more than the body’s metabolic rate?
A.They will put on more weight. B.They will feel comfortable.
C.They may become unconscious. D.They may not lose weight at all.
3.Which of the following is a better way to lose weight?
A.Sitting still and breathing more. B.Sleeping a lot and breathing a lot.
C.Eating less and exercising more. D.Eating more and doing some light exercise.
4.Which is true according to the study from University of New South Wales?
A.The fat is changed into heat and released in the air.
B.Most of the kilograms of fat as they are lost are breathed out as carbon dioxide.
C.People can see the carbon dioxide gas we breathe out.
D.If we breathe more than the body’s metabolic rate, we will feel good.
5.During a week , how much carbon dioxide does a 70kg person breathes out?
A.240g B.200g C.1400g D.1680g
九年级英语阅读单选困难题查看答案及解析
—What fruit would you like?
—Some , please. They are my favorite.
A. dessert B. grapes C. juice D. Biscuits
九年级英语单项填空中等难度题查看答案及解析
— What fruit would you like?
— Some , please. They are my favorite.
A.dessert B. juice C. grapes D. biscuits
九年级英语单项填空简单题查看答案及解析
You can see some photos ______ the trip ______ the Internet.
A. of; on B. with; in C. from; at D. to; by
九年级英语单选题中等难度题查看答案及解析
Can you suggest some places where I can make _____ one-day trip from Shanghai?
A. a B. an C. the D. /
九年级英语单选题简单题查看答案及解析
Can you suggest some places where I can make _____ one-day trip from Shanghai?
A. a B. an C. the D. /
九年级英语单项填空简单题查看答案及解析