36.What is the research at Johns Hopkins University about?
A.Causes of aircraft crash.
B.Gender difference in relation to types of aircraft crashes.
C.Causes of mishandling aircraft.
D.Gender discrimination in general aviation in the United States.
37.Which of the statements is NOT true according to the second paragraph?
A.Crashes of general aviation aircraft are a maj or source of aviation accidents in the United States.
B.Male pilots，like male vehicle drivers，are more likely to have accidents than female pilots.
C.It is commonly known that aircraft crashes are mostly caused by young and inexperienced pi— lots.
D.Only mature pilots are studied to determine the gender differences in the reasons for aircraft crash.
38.How did the researchers carry out their study?
A.They studied the findings of several previous research projects.
B.They conduced a questionnaire with 411 pilots.
C.They collected data from the database at the Johns Hopkins University
D.They analyzed the circumstances of the crashes involved.
39.What is the most common circumstance of crash with female pilots?
A.Mechanical failure and running out of fuel.
B.Loss of control on landing or takeoff and stalling.
C.Loss of control on landing or takeoff and running out of fuel.
D.Stalling and landing with the gear up.
40.In the comparison of female and male pilots，
A.female pilots are found to be more courageous and risk—taking.
B.male pilots are found to be more professional and attentive.
C.female pilots are found to make more errors out of carelessness.
D.male pilots are found to make more errors in decision—making.
41.According to the first paragraph，one or the warnings given by the scientists is that
A.underground fire loom large in the forests.
B.coal burning deep underground is round in China.
C.poisonous elements released by the underground fires can pollute water sources.
D.arsenic and mercury arc the most poisonous elements to water sources.
42.According to the third paragraph，what will happen when the underground heat does not dis—appear?
A.Coal heats up on its Own and catches fire and burns.
B.The underground oxygen will be used up.
C.Poisonous fumes and greenhouse gases wm be accumulated anderground.
D.There will be an increase of abandoned mines.
43.What did Stracher analyze in his article published in the International Journal of Coat Ecology?
A.Annual consumption of coal in US.
B.Annual consumption of coal in China.
C.How long coal fires has lasted in the northern region of China.
D.Coal fires can have an impact Ol3.the environment.
44.Which of the following statements about Paul Van Dijk is NOT true?
A.He was one of the scientists who have warned against the threats of underground fires.
B.He has detected and monitored underground fires in Netherlands.
C.He has worked with the Chinese government on the underground fires issue.
D.He works for a research institute in the Netherlands.
45.According to the fifth parag,aph，what is the suggested method to control underground fires?
A.Using remote sensing technique.
B.Controlling the release of carbon dioxide.
C.Making the soil heat resistant.
D.Cutting off the oxygen supply.
