【单选题】Thecountrywhichwashitbyearthquake()totheUnitedNationsforaid.
A.accelerate
B.cherish
C.appeal
D.characterize
A.accelerate
B.cherish
C.appeal
D.characterize
【单选题】spEAkEr A: you ArE 40 minutEs lAtE. your typE BrokE AgAin this morning
spEAkEr B: ______.
A.yEs, it's A gooD story.
B.yEs, whAt Do you think
C.sorry. it won't hAppEn AgAin.
D.right. you know mE wEll.
spEAkEr B: ______.
A.yEs, it's A gooD story.
B.yEs, whAt Do you think
C.sorry. it won't hAppEn AgAin.
D.right. you know mE wEll.
【单选题】it wAs ______ thE ChiEF EnginEEr CAmE ______ wE BEgAn thE ExpErimEnt.
A.not until; thAt
B.not until; thEn
C.until; thAt
D.until; whEn
A.not until; thAt
B.not until; thEn
C.until; thAt
D.until; whEn
【单选题】Woman: I am upset. You told my boss I had a part-time job Man: I am sorry. I couldn’t help it. Question: What does the man mean
A.He couldn’t help the woman at all.
B.He couldn’t hold back the secret.
C.He couldn’t possibly tell the boss.
D.He couldn’t decide who told the boss.
A.He couldn’t help the woman at all.
B.He couldn’t hold back the secret.
C.He couldn’t possibly tell the boss.
D.He couldn’t decide who told the boss.
【单选题】Imagine eating everything delicious you want with none of the fat. That would be great, wouldn’t it
New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods.Critics, however, say the new compound can rob the body of essential vitamins and nutrients and also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating.
Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all.
Normally, special chemicals in the intestines (肠道) "grab" molecules of regular fat and break them down so they can be used by the body.A、molecule of regular fat is made up of three molecules of substances called fatty acids.
The fatty acids are absorbed by the intestines and bring with them the essential vitaminsA,D,
E、and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.
Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorB、It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fit substitute. It provides consumers with the taste of regular fat without any bad effects on the body.But critics say olestra can prevent vitaminsA,D,
E、and K from being absorbeD、It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etC、
Manufacturers are adding vitaminsA,D,
E、and K as well as carotenoids to their products now.Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.
What is a possible negative effect of olestra according to some critics
A、It may increase the risk of cancer.
B、It may impair the digestive system.
C、It may spoil the consumers’ appetite.
D、It may affect the overall fat intake.
New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods.Critics, however, say the new compound can rob the body of essential vitamins and nutrients and also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating.
Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all.
Normally, special chemicals in the intestines (肠道) "grab" molecules of regular fat and break them down so they can be used by the body.A、molecule of regular fat is made up of three molecules of substances called fatty acids.
The fatty acids are absorbed by the intestines and bring with them the essential vitaminsA,D,
E、and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.
Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorB、It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fit substitute. It provides consumers with the taste of regular fat without any bad effects on the body.But critics say olestra can prevent vitaminsA,D,
E、and K from being absorbeD、It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etC、
Manufacturers are adding vitaminsA,D,
E、and K as well as carotenoids to their products now.Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.
What is a possible negative effect of olestra according to some critics
A、It may increase the risk of cancer.
B、It may impair the digestive system.
C、It may spoil the consumers’ appetite.
D、It may affect the overall fat intake.
【单选题】Speaker A: Sorry for being late. You see, I was held up by the traffic. Speaker B:______
A.Oh, it's quite all right. Forget it!
B.I also find the traffic very heavy during the rush hours.
C.Yes, the traffic jam is more serious than before.
D.Not at all. You can come anytime.
A.Oh, it's quite all right. Forget it!
B.I also find the traffic very heavy during the rush hours.
C.Yes, the traffic jam is more serious than before.
D.Not at all. You can come anytime.
【单选题】No sooner had I opened the cupboard door ______ I stood before a dangling skeleton.
A.and
B.when
C.than
D.that
A.and
B.when
C.than
D.that
【判断题】教学有法,但无定法。
【单选题】Nearly two weeks passed_____the old man was able to explain what had happened to him.
A.when
B.till
C.before
D.while
A.when
B.till
C.before
D.while
【单选题】Speaker A: Hello! Professor Freeman's secretary. Can I help you Speaker B:______
A.Hello! Can you find Professor Freeman for me
B.Yes. I hope you can help me. My name is John Smith.
C.Good afternoon. I'd like to make an appointment to see the professor on Thursday, please
D.Thank you. Professor Freeman knows me well.
A.Hello! Can you find Professor Freeman for me
B.Yes. I hope you can help me. My name is John Smith.
C.Good afternoon. I'd like to make an appointment to see the professor on Thursday, please
D.Thank you. Professor Freeman knows me well.
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