Because the results of individual research studies can be affected by many factors，combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing，diagnosing or treating a particular disease．Case conferences and case reports may be published in medical journals to educate physicians about particular illnesses and how to treat at them．Editorials in medical journals are short essays that express the views of the authors，often regarding a research or review article published in the same issue．
Editorials provide perspective on how the current article fits with other information on the same topic．Letters to the editor provide a way for readers of the medical journal to express comments， questions or criticisms about articles published in that journal．
1． The main readers of medical journals are
A)the general public．
B1healthprofessionals． ，
C)medical critics．
D、news reporters．
2． Which of the following statements is NOT true?
A) Many medical journals also publish online．
B)A few medical journals are general medical journals．
C)Most medical journals publish only online．
D)Most medical journals are specialty journals．
3. How many major types of articles are mentioned in the passage?
A、Five．
B)Seven．
C)Four．
D)Six．
4. An article dealing with results from different studies on the same topic is called
A)a research article．
B)a review article．
C)a case report．
D)an editorial．
5．Letters to the editor enable readers of a medical journal to express comments on
A)any medical event．
B) articles published in the same issue．
C)articles published in that journal
D)medical development．
第2篇
Adaptation of Living Things
Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. Among the superior characteristics developed through adaptation are those that may help in getting food or shelter, in providing protection, and in producing and protecting the young. That results in the evolution of more and more organisms that are better fitted to their environments.
Editorials provide perspective on how the current article fits with other information on the same topic．Letters to the editor provide a way for readers of the medical journal to express comments， questions or criticisms about articles published in that journal．
1． The main readers of medical journals are
A)the general public．
B1healthprofessionals． ，
C)medical critics．
D、news reporters．
2． Which of the following statements is NOT true?
A) Many medical journals also publish online．
B)A few medical journals are general medical journals．
C)Most medical journals publish only online．
D)Most medical journals are specialty journals．
3. How many major types of articles are mentioned in the passage?
A、Five．
B)Seven．
C)Four．
D)Six．
4. An article dealing with results from different studies on the same topic is called
A)a research article．
B)a review article．
C)a case report．
D)an editorial．
5．Letters to the editor enable readers of a medical journal to express comments on
A)any medical event．
B) articles published in the same issue．
C)articles published in that journal
D)medical development．
第2篇
Adaptation of Living Things
Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. Among the superior characteristics developed through adaptation are those that may help in getting food or shelter, in providing protection, and in producing and protecting the young. That results in the evolution of more and more organisms that are better fitted to their environments.