Vitamins B
B group vitamins have a wide range of roles acting as co-enzymes in metabolic pathways. They are found in most plant and animal tissues involved in metabolism, therefore foods such as liver, yeast and dairy products are all rich in B group vitamins. Deficiency of B group vitamins include dermatitis, fatigue and malformation of red blood cells.
1. An adult needs about 12,000kJ of energy a day from ________.
A. the cell B. the respiring process of carbohydrates
C. fats in the cell D. a balanced diet
2. Carbohydrates are ultimately absorbed into cells in the process of _______.
A. digestion B. respiration
C. oxidization D. mobilization
3. The Essential Amino Acids which build part of proteins can be obtained from______.
A. stomach B. body tissues
C. the body D. the diet
4. The ultimate cause of kwashiorkor is lack of ________.
A. protein B. carbohydrates
C. vitamins D. diet
5. Vitamins are called “micronutrients” in that _________.
A. excessive fat soluble vitamins can be excreted in the urine B. the body only requires small amount of vitamins
C. a dose of 3300mg of vitamins can be considered toxic D. the high concentrations of water soluble vitamins are toxic
6. Night blindness is a disease normally caused by lack of __________.
A. fat soluble vitamins B. water soluble vitamins
C. vitamin A D. innate disability
7. The main function of vitamin D is to prevent adults from ________.
A. the growth of strong bones B. fracture
C. a progressive softening of the bones D. calcium uptake from the gut
8. Although the human body produces vitamin D normally, it fails to do so if there is not enough ______________.
9. The reason why vitamin C is seen as an antioxidant is that it drives __________ out of the body.
10. If you are in lack of B group vitamins, you should turn to _______________.
Part Ⅲ Listening Comprehension (35 minutes)
Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A),B),C) and D),and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
注意：此部分试题请在答题卡2上作答。
11. A) She is going to Finland. B) She has some visitors.
C) She will visit Finland next week. D) She has just visited him this week.
12. A) To cancel his trip. B) To go to bed early.
C) To catch a later flight. D) To ask for a wake up call.
13. A) Saturday afternoon was the man’s busy hours.
B) The man won’t be able to enjoy a nap.
C) Mr. Smith is an old friend of the man.
D) The man wanted to take a long nap after lunch.
14. A) George wants to change his work. B) George is doing pretty good now.
C) George doesn’t like his work. D) George is not doing well with his work.
15. A) The woman is a dentist. B) The woman is a secretary.
C) The woman is a receptionist. D) The woman is a patient.
16. A) The woman knows the professor has been busy.
B) The woman knows the professor has run into trouble.
C) The woman has trouble getting along with the professor.
D) The woman regrets having taken up much of the professor’s time.
17. A) At a restaurant. B) In the fresh ocean air.
C) On a fishing boat. D) In a store specializing in seashells.
18. A) They will buy a new house after they buy a car.
B) They will buy a bigger house.
C) They won’t buy a new house because they can’t find a bigger one.
D) They won’t buy a bigger house because they don’t have enough money.
Questions 19 to 21 are based on the conversation you have just heard.
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