[单项选择]Some of the meat smelt bad before reaching the market and ______ away.
A. could be thrown
B. must throw
C. had to be thrown
D. should throw

[单项选择]Mrs. Alison asked her husband to buy some meat three days ago and he ______.


A. forgot it
B. did it
C. lost the meat

[单项选择]He asked me to give him some meat ______ credit.
A. by
B. on
C. for
D. in

[单项选择]"Help ______ to some meat,Jack, "my aunt said to me. [A] yourselves (你们自己) [B] yourself [C] myself

[单项选择]This offer is ____ your reply reaching us before May 5th.
A. subject
B. subjected
C. subject to
D. subjected to

[单项选择]The smell of the meat was so bad that she felt sick and turned away ______.
A. in disgust
B. in distance
C. in dishonor
D. in dispute

[单项选择]The carelessness has some bad effects on his show.
A. scores
B. results
C. influences
D. luck

[单项选择]Why does the author give some examples of bad rules
A. Because those rules are said to be strongly negative.
B. Because he wants to show that rules are not the criteria for judging right or wrong.
C. Because those rules are made in order to stop what is wrong.
D. Because he wants to support the argument that stealing a book is not a crime.

[单项选择]Some of the meat came from Canada. How about______
A. another
B. the other
C. others
D. the rest

[单项选择]The meat you bought last week terrible. It_____bad.
A. smells; must go
B. smells; must have gone
C. is smelt; must go
D. is smelt; must have gone

[单项选择]

Why does cream go bad faster than butter Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition — a finding that could help rid some processed foods of chemical preservatives.
Cream and butter contain pretty much the same substances, so why cream should sour much faster has been a mystery. Both are emulsions — tiny globules (小球) of one liquid evenly distributed throughout another. The difference lies in what’s in the globules and what’s in the surrounding liquid, says Brocklehurst, who led the investigation.
In cream, fatty globules drift about in a sea of water. In butter, globules of a watery solution are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the mixture. "This means that in cream, the bacteria are free to grow throughout the mixture," he says.
When the situation is reversed, the bact
A. it suggested a way to keep some foods fresh without preservatives
B. it discovered tiny globules in both cream and butter
C. it revealed the secret of how bacteria multiply in cream and butter
D. it found that cream and butter share the same chemical composition

[单项选择]Some people are good at______but bad at giving back.


A. borrowing
B. taking
C. bringing
D. lending