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Unit 6 Text A:The text introduces the possibility of a cure for the common cold. Please fill in the blanksbased on your understanding of the text.Theme:Curing the common cold (1).Researcher:A research team headed by Dr. Liggett and Dr. Ann C. PalmerbergProcess of discovering the possible cure for common cold:ØScientists (2) of the 99 strains of the common cold virus.ØScientists compare the 99 genomes and arrange them in a family tree based on(3)in their genomes.ØThe family tree shows that (4)are changing while others never change, which indicates that (5)perform vital roles and be the(6)for drugs because any of the 99 strains would succumb to the same drug.ØAll strains of rhinovirus have much the same sequence of units and all could be vulnerable to the same drug.Significance of the drug for common cold:Øto relieve (7)that is familiar to everyone.Øto (8)for asthma patients and chronic obstructive pulmonary disease patients.Reasons for the regretful response to develop the drug for common cold:ØIt is too (9)a cost for developing a new drug.ØIt is difficult for the drug to be (10) by the authority.ØThe two(11)for flu do not satisfy the commercial expectation.ØIt is not (12)as people thought to turn a scientific discovery into a marketable drug.ØThe (13)---the common cold virus---has many strains and be a moving target for any drug or vaccine.Further research on the common cold virus:To analyze a new family of rhinoviruses, which attack (14)lining the deep lungs, causing viral pneumonia.
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Unit 6 Text B:The autoimmune response takes place under the interaction among the aggressive T cells, the weaker T cells and the antigen-presenting cells. Choose the correct answer(s) to their respective function(s) according to the text.1) The function(s) of aggressive T cells:
2) The function(s) of weaker T cells:
3) The function(s) of the antigen-presenting cells:
Unit 6 Text C:Complete the summary of the text with NO MORE THAN FIVE WORDS.Provenge was (1) for each patient by (2) his dendritic cells and exposing them to a (3) called prostatic acid phosphatase. Once (4) into the patient, the exposed cells should trigger an(5) on tumor cells. The vaccine’s performance is (6) given its nearly 20-year-old technology, compared with many (7) cancer vaccines. Now a second generation of vaccines aiming at provoking a(8) is under development. For cancer-vaccine developers,(9) is crucial. The struggle to create effective cancer vaccines(10) the memories of the long battle to develop antibody-based therapies: people need to (11) to prove it.
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