单选题Directions: Read the following text. Choose the best
word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET.
Being fat is bad for you. {{U}}
{{U}} 1 {{/U}} {{/U}}that, almost everyone agrees. It is just
possible, {{U}} {{U}} 2 {{/U}} {{/U}}, that almost everyone is
wrong. In fact, getting fat may be a mechanism that {{U}} {{U}} 3
{{/U}} {{/U}}the body. The health problems {{U}} {{U}} 4
{{/U}} {{/U}}with fatness may not be caused by it but be another {{U}}
{{U}} 5 {{/U}} {{/U}}, another symptom, of overeating.
That is the {{U}} {{U}} 6 {{/U}} {{/U}}of Roger Unger and
Philip Scherer. Dr. Unger and Dr. Scherer have been reviewing the science of
what has come to be known as metabolic syndrome. This is a cluster of symptoms
such as high blood {{U}} {{U}} 7 {{/U}} {{/U}}, insulin
resistance and fatness that seem to increase the {{U}} {{U}} 8
{{/U}} {{/U}}of heart disease and strokes, diabetes and liver disease.
"Syndrome" is the medical term for a(n) {{U}} {{U}} 9 {{/U}}
{{/U}}of symptoms whose common cause is not {{U}} {{U}} 10
{{/U}} {{/U}}understood. The symptom of metabolic syndrome that appears first
is usually {{U}} {{U}} 11 {{/U}} {{/U}}, so this is generally
{{U}} {{U}} 12 {{/U}} {{/U}}as the underlying cause.
Dr. Unger and Dr. Scherer, {{U}} {{U}} 13 {{/U}}
{{/U}}turn this logic on its head. They point out that there is usually a period
of many years between a person becoming {{U}} {{U}} 14 {{/U}}
{{/U}}and his developing the other {{U}} {{U}} 15 {{/U}} {{/U}}.
If the growth of adipose tissue (the body cells in which fat is stored) were
{{U}} {{U}} 16 {{/U}} {{/U}}harmful, that would not be the
{{U}} {{U}} 17 {{/U}} {{/U}}. This is one of the lines of
evidence that has led them to the conclusion that, {{U}} {{U}} 18
{{/U}} {{/U}}its role in storing energy as a hedge against future famine,
getting fat is a protective mechanism {{U}} {{U}} 19 {{/U}}
{{/U}}metabolic syndrome. Their thesis is that lipids (the group
of molecules that includes fats), which are needed in small amounts to make cell
membranes, are toxic in larger quantities. {{U}} {{U}} 20
{{/U}} {{/U}}them into adipose tissue is one of the body's ways of dealing
with that toxicity.
【答案解析】[解析] 逻辑语义题。前一句话说，肥胖被认为是这些症状的潜在病因。而空格后的一句话说，安格尔和舍勒博士颠覆了这一逻辑(turn this logic on its head)。两句话之间是转折的关系，因此，应该选择表示转折关系的连词或副词，C项符合题意。
A项表示结果，B项表示顺序，D项表示因果关系，均不符合题意。
【答案解析】[解析] 逻辑语义及习惯搭配题。这句话是说，如果脂肪组织直接有害的话，就不会出现上述情况。空格处需要一个表示“情况”、“状况”等含义的名词。that is (not) the case是习惯的表达，D项符合题意。又如If that's the case，you'll have to work hard.如果真是那样，你得更加努力工作才行。