Most middle-aged people get fatter, mainly because ______.
A: they made dietary changes when they grow old
B: of their sedentary living
C: they don't exercise regularly
D: the chemical activity in their body that uses the food to produce energy slows down
A: they made dietary changes when they grow old
B: of their sedentary living
C: they don't exercise regularly
D: the chemical activity in their body that uses the food to produce energy slows down
D
举一反三
- Middle aged people may feel subhealth, because _______. A: they have lost their living hopes B: they have more pressure in life and work C: they have used up their energy D: they begin to get energy
- Why does a lack of sleep cause people to gain weight A: Because people burn fewer calories when they are awake. B: Because people feel hungry when they lack sleep. C: Because their hormones stay unchanged. D: Because people don"t exercise when they don"t have enough sleep.
- When people grow old, they tend toon the past mostly because their living conditions are not as good as before. A: cling B: stick C: hold D: dwell
- Middle-aged people may feel subhealth, because（）. A: they have lost their living hopes B: they have more pressure in life and work C: they have used up their energy D: they begin to get older
- Most people can't read and comprehend quickly mainly because ________. A: they don't read groups of words B: they don't like to be trained in reading skills C: they don't realize they have poor reading habits D: they don't understand words when put together
内容
- 0
Energy is expended in body mainly in following aspects EXCEPT ;( ) A: basal metabolism B: physical activity C: growth D: thermic effect of food
- 1
People living in the Middle East first learned to grow plants for food about 10,000 year ago. A: Right B: Wrong C: Not mentioned
- 2
Why would astronauts cover each bite of food in space（） A: Because small pieces of food would fall down to the floor. B: Because weightless pieces of food might make trouble when they travel around. C: Because they haven’ t enough food for longer trips. D: Because astronauts don’ t want to waste foo
- 3
Don't grow old; grow up."Old" and "up" are adverbials in the above sentence.
- 4
People are beginning to use clean energy sources mainly because _______.