Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

   Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

   The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be separated from chocolate

D. can be a more effective cure for coughs

What was used in the experiment to cause coughing?

A. Theobromine.  B. Codeine.  C. Capsaicin.  D. Placebo.

We learn from the text that volunteers in the experiment _____.

A. were patients with bad coughs

B. were divided into the three groups

C. received standard treatments

D. suffered little side effects

Which of the following would be the best title for the text?

A. Codeine: A New Medicine        B. Chocolate May Cure Coughs

C. Cough Treatment: A Hard Case    D. Theobromine Can Cause Coughs

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.
Their study found that theobromine（可可堿）, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.
The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.
Ten healthy volunteers were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicines are stopping coughs.
The team found that, when the volunteers were given theobromine, the capsaicin needed to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed only slightly higher levers of capsaicin to cause a cough compared with the placebo.
The researchers said that theobromine worked by keeping down a nerve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.
【小題1】According to Professor Barnes, theobromine ______.

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.
Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.
The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.
Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.
The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.
The researchers said that theobromine worked by keeping down a verve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.
【小題1】According to Professor Barnes, theobromine ______.

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

Their study found that theobromine（可可堿）, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicines are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin needed to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a nerve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

1.According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be separated from chocolate

D. can be a more effective cure for coughs

2.What was used in the experiment to cause coughing?

A. Theobromine.                          B. Codeine.             C. Capsaicin.                    D. Placebo.

3.We learn from the text that volunteers in the experiment _____.

A. were patients with bad coughs

B. were divided into the three groups

C. received standard treatments

D. suffered little side effects

4.Which of the following would be the best title for the text?

A. Codeine: A New Medicine

B. Chocolate May Cure Coughs

C. Cough Treatment: A Hard Case

D. Theobromine Can Cause Coughs

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

1.According to Professor Barnes, theobromine ______.

2.What was used in the experiment to cause coughing?

3.We learn from the text that volunteers in the experiment _____.

4.Which of the following would be the best title for the text?

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

53. According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be separated from chocolate

D. can be a more effective cure for coughs

54. What was used in the experiment to cause coughing?

    A. Theobromine.                     B. Codeine.          C. Capsaicin.               D. Placebo.

55. We learn from the text that volunteers in the experiment _____.

 A. were patients with bad coughs

 B. were divided into the three groups

 C. received standard treatments

 D. suffered little side effects

56. Which of the following would be the best title for the text?

A. Codeine: A New Medicine           B. Chocolate May Cure Coughs

C. Cough Treatment: A Hard Case    D. Theobromine Can Cause Coughs

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

1.According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be separated from chocolate

D. can be a more effective cure for coughs

2.What was used in the experiment to cause coughing?

   A. Theobromine.  B. Codeine.  C. Capsaicin.  D. Placebo.

3.We learn from the text that volunteers in the experiment _____.

   A. were patients with bad coughs

   B. were divided into the three groups

   C. received standard treatments

   D. suffered little side effects

4.Which of the following would be the best title for the text?

   A. Codeine: A New Medicine        B. Chocolate May Cure Coughs

   C. Cough Treatment: A Hard Case    B. Theobromine Can Cause Coughs

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.
Their study found that theobromine（可可堿）, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.
The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.
Ten healthy volunteers were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicines are stopping coughs.
The team found that, when the volunteers were given theobromine, the capsaicin needed to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed only slightly higher levers of capsaicin to cause a cough compared with the placebo.
The researchers said that theobromine worked by keeping down a nerve activity(神經(jīng)活動), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

1. 1.

   According to Professor Barnes, theobromine ______.

   1. A.
      cannot be as effective as codeine
   2. B.
      can be harmful to people’s health
   3. C.
      cannot be separated from chocolate
   4. D.
      can be a more effective cure for coughs
2. 2.

   What was used in the experiment to cause coughing?

   1. A.
      Theobromine.
   2. B.
      Codeine.
   3. C.
      Capsaicin.
   4. D.
      Placebo.
3. 3.

   We learn from the text that volunteers in the experiment _____.

   1. A.
      were patients with bad coughs
   2. B.
      were divided into the three groups
   3. C.
      received standard treatments
   4. D.
      suffered little side effects
4. 4.

   Which of the following would be the best title for the text?

   1. A.
      Codeine: A New Medicine
   2. B.
      Chocolate May Cure Coughs
   3. C.
      Cough Treatment: A Hard Case
   4. D.
      Theobromine Can Cause Coughs

   Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

   Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

   The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful（有害的） it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers（志愿者） were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity（神經(jīng)活動）, which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

1. According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be separated from chocolate

D. can be a more effective cure for coughs

2. What was used in the experiment to cause coughing?

   A. Theobromine.  B. Codeine.  C. Capsaicin.  D. Placebo.

3. We learn from the text that volunteers in the experiment _____.

   A. were patients with bad coughs

   B. were divided into the three groups

   C. received standard treatments

   D. suffered little side effects

4. Which of the following would be the best title for the text?

   A. Codeine: A New Medicine        B. Chocolate May Cure Coughs

   C. Cough Treatment: A Hard Case    D. Theobromine Can Cause Coughs

Something in chocolate could be used to stop coughs and lead to more effective (有效的) medicines, say UK researchers.

    Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

    The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatments. “While coughing is not necessarily（不一定） harmful it can have a major effect on the quality of life, and this discovery could be a great step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicines are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin needed to produce a cough was about a third higher than in the placebo group. When they were given codeine they needed only a little higher levels of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity(神經(jīng)活動), which causes coughing. They also found that unlike some standard（正規(guī)的） cough treatments, theobromine caused no side effects such as sleepiness.

67. According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be taken out of chocolate

D. can be a more effective treatment for coughs

68. What was used in the experiment to cause coughing?

   A. Theobromine.           B. Codeine.                 C. Capsaicin.               D. Placebo.

69. We learn from the text that volunteers in the experiment _____.

   A. were patients with bad coughs                       B. were divided into three groups

   C. received standard treatments                         D. suffered a few side effects

70. Which of the following would be the best title for the text?

   A. Codeine: A New Medicine                        B. Chocolate May Stop Coughs

   C. Cough Treatment: A Hard Problem                 D. Theobromine Can Cause Coughs