Scientists Develop Ways of Detecting Heart Attack
      German researchers have____1____a new generation of defibrillators and early-warning software aimed at offering heart patients greater protection____2____sudden death from cardiac arrest.
In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases____3____by disruption to the heart’s rhythm. Those most at risk are patients who have____4____suffered a heart attack, and for____5____years the use of defibrillators has proved useful in intervening within seconds. These devices____6____a range of functions, such as that of pacemaker.
      Heart specialists at Freiburg’s University Clinic have now achieved a breakthrough with an implanted defibrillator____7____of generating a six-channel electrocardiogram (ECG) within the body. This integrated system allows early diagnosis of____8____blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders of ECG data____9____.
      The overwhelming____10____of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs. “Many of the current programs only____11____into account a linear correlation of the data. We are, however, making use____12____a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system,” Hagen Knaf says, “____13____changes in the heart beats over time can be monitored and individual variations in patients taken into account.” An old study of ECG data, based____14____600 patients who had suffered a subsequent heart attack, enabled the researchers to compare risks and to show____15____the new software evaluates the data considerably better.

1.  A) come up              B) come up with        C) come up to          D) come up against
2.  A) to                    B) for                            C) with                D) from
3.  A) are caused          B) caused                  C) are to cause            D) have been causing
4.  A) easily                B) readily                  C) frequently              D) already
5.  A) disease-producing                                B) health-improving
C) life-threatening                                        D) error-correcting
6.  A) take in              B) take after                    C) take on              D) take from
7.  A) capable              B) able                            C) skillful              D) skilled
8.  A) chronic              B) acute                            C) recurrent      D) persistent
9.  A) precisely              B) more precisely              C) precision        D) more precise
10. A) maximum              B) minimum              C) majority              D) minority
11. A) get                  B) take                            C) bring                D) fetch
12. A) of                    B) with                      C) for                  D) in
13. A) Similarly              B) In this manner            C) Otherwise            D) In this way
14. A) in                    B) for                            C) upon                D) with
15. A) what              B) where                  C) that                  D) when
Eat for a Good and Healthful Life
      Food____1____us alive. It is our sustenance and our pleasure. But recently, research has shown that the eating habits of the average Americans may be dangerous to future health.
      The foods Americans now choose are oftentimes too____2____in calories and fats, so this article reports a new study: Diet and Health, Implications for Reducing Chronic Disease Risk.
The study, conducted____3____the National Research Council’s Committee on Diet and Health, ____4____that balancing nutrition, calories and activity is key____5____enjoying a long and healthful life.
The report recommends that most Americans increase____6____activity to a moderate level and make changes in food____7____and calories intake to maintain ideal weight.
Most of us—even those of us at ideal weight—need to eat____8____fat so that no more than 30% of our daily calories will come from fat.
      That means cutting____9____on red meat and whole milk dairy products.____10____, eat fish, chicken without skin, lean meats, and low-fat and no-fat dairy products.
      The report of the Committee on Diet and Health recommends we eat five or more 1/2-cup servings of vegetables and fruits____11____—especially green and yellow vegetables and citrus fruits.
      Eating more fruits and vegetables doesn’t have to mean increased calories intake. Many plant foods are nutrient-rich: they provide many vitamins and minerals for very few____12____.
      Nutrient-rich foods are particularly important for Americans____13____50. As we ____14____, we need to eat less because our bodies need____15____calories to function properly. But we still need full measures of vitamins and minerals to release the energy in our foods and make us feel strong and healthy.

1.  A) remain              B) remains                C) keep                D) keeps
2.  A) full                    B) rich                            C) little                  D) special
3.  A) by                    B) at                                  C) with              D) for
4.  A) doubts              B) concludes                    C) knows                  D) reasons
5.  A) about                B) to                            C) of                    D) for
6.  A) mental              B) spare                            C) physical        D) chemical
7.  A) choose                    B) chooses                C) chose              D) choices
8.  A) little                  B) much                          C) less                    D) more
9.  A) up                    B) down                          C) hard              D) off
10.  A)However              B) Or                            C) Indeed                    D) Rather
11.  A) day                  B) daily                      C) year                  D) annually
12.  A) nutrition              B) nutritions              C) calorie                    D) calories
13.  A) over                B) under                          C) for                    D) in
14.  A) older                B)old                            C) age                  D) grow
15.  A) less                  B) fewer                          C) more                    D) enough