五、填詞補文：第 31~40 題，每題 1.5 分，共 15 分。

下面的短文有十處空白，短文后列出十二個詞，其中十個取自短文，請根據(jù)短文內(nèi)容將其分

別放回原有位置，以恢復(fù)文章原貌。

A recent ____31____ has found that chocolate may be good for your heart. This is a fantastic message for all chocolate lovers. The study was ____32____ over eight years. It followed 20,000 chocolate-eating people, and ____33____ the amount of chocolate in their diet to the incidence of heart attack. Lead researcher Brian Smith said: “The good news is that chocolate is not as bad as we ____34____ to think, and may even lower the risk of heart disease.”

Experts ____35____ that natural compounds in chocolate called flavonols are good for our heart. They are found in cocoa beans（可可豆）. As dark chocolate has more cocoa than milk chocolate which has more fat, it contains more flavonols. “So, dark chocolate is the ____36____  kind to eat” said Smith.

The study showed that people who ate the most chocolate reduced their ____37____ of having a heart attack by 27 percent. But Smith warns people not to ___38_____ eat lots of chocolate.“Eating higher amounts will most likely ___39_____ weight gain. If people start ____40____ small amounts of chocolate, it should replace something else, preferably other high-calorie sweets, he said.

A: healthiest

B: believe

C: conducted

D: risk E: compared

F: suddenly

G: study

H: running

I: used

J: result in

K: eating

L: from

The main purpose of the passage is to

• A、discuss the advantages and disadvantages of skyscrapers
  
  

• B、compare skyscrapers with other modern structures
  
  

• C、 describe skyscrapers and their effects on the environment
  
  

• D、 illustrate various architectural designs of skyscrapers
  
  

According to the passage, which aspect of skyscrapers were some residents of North America concerned with in the late 1960’s?

• A、The poor reception of radio and TV signals.
  
  

• B、The removal of trees and grass from building sites.
  
  

• C、The harmful effects on the city’s plans. 
  
  

• D、The obstruction of air traffic.