Section A
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.

Researchers, writing in the journal Heart, pooled data from 23 studies and found that social isolation or feelings of loneliness were tied to an increased risk of coronary heart disease (冠心病) and strokes.

The studies included data from 181,006 men and women ages 18 and over. There were 4,628 coronary events and 3,002 strokes in follow-up periods    26    from three to 21 years. Three of the papers    27    loneliness, 18 looked at social isolation and two included both. Social isolation and loneliness were determined with questionnaires; the researchers depended on medical records and death    28    for determining coronary events and strokes.

The scientists found that loneliness and social isolation increased the    29    risk of having a heart attack or a death from heart disease by 29 percent, and the risk of stroke by 32 percent. There were no    30    between men and women.

"People have tended to focus from a policy point of view on    31    lonely people to make them more    32   ," said the lead author, Nicole K. Valtorta, a research fellow at the University of York in England. "Our study    33    that if this is a risk factor, then we should be trying to prevent the risk factor in the first place."

The authors    34    that this was a review of observational studies and did not    35    cause and effect.

A) acknowledge   B) certificates   C) connected   D) demonstrates   E) differences   F) establish   G) formats   H) measured   I) narrow   J) permanent   K) produces   L) ranging   M) relative   N) submitting   O) targeting