While she was _________ losing her life, she was still concerned about her fellow sufferers.

A. endanger
B. in danger of
C. dangerous
D. out of dangerous

They helped the store collect items of furniture and other ________ goods from homes nearby.

A. household
B. househeld
C. households
D. house

Some of their work is ___________ providing support for patients and their families.

A. concerning up
B. concern to
C. concerned with
D. concerned to

At that time teaching was his only ________ of income.

A. sources
B. resource
C. source
D. way

As if you needed another reason to hate the gym, it now turns out that exercise can exhaust not only your muscles, but also your eyes. Fear not, however, for coffee can stimulate them again. During 26 exercise, our muscles tire as they run out of fuel and build up waste products. Muscle performance can also be affected by a __27__ called “central fatigue”,in which an imbalance in the body’s chemical messengers prevents the central nervous system from directing muscle movements __28__ . It was not known, however, whether central fatigue might also affect motor systems not directly __29__ in the exercise itself, such as those that move the eyes. To find out, researchers gave 11 volunteer cyclists a carbohydrate (碳水化合物) __30__ either with a moderate dose of caffeine (咖徘因),which is known to stimulate the central nervous system, or as a placebo (安慰剂)without, during 3 hours of __31 __ . After exercising, the scientists tested the cyclists with eye-tracking cameras to see how well their brains could still __32__ their visual system. The team found that exercise reduced the speed of rapid eye movements by about 8%, __33__ their ability to capture new visual information. The caffeine, the equivalent of two strong cups of coffee, was __34__ to reverse this effect, with some cyclists even displaying __35__ eye movement speeds. So it might be a good idea to get someone else to drive you home after that marathon.A） cautiously B） commit C） control D）cycling E）effectivelyF） increased G）involved H） limited I） phenomenonJ） preventing K） sensitive L） slowing M） solutionN）sufficient O） vigorous

Please choose the best answer and fill in the blanks from the following choices:silence continue delivered entail on behalf of

Please choose the best answer and fill in the blanks from the following choices:silence continue delivered entail on behalf of2.The successful businessman _________ an inspiring speech in the auditorium.

Please choose the best answer and fill in the blanks from the following choices:silence continue delivered entail on behalf of3.The books __________ the traditional culture values of the country.

Please choose the best answer and fill in the blanks from the following choices:silence continue delivered entail on behalf of4.We should ____________ to fight for our future.

Please choose the best answer and fill in the blanks from the following choices:silence continue delivered entail on behalf of5.He delivered an excellent speech _____________ the whole student.