According to the passage, biological agents mainly consist of




A.insects and microorganisms
B.herbicides
C.useful plants
D.weeds

Which of the following best describes the organization of the passage?




A.Two possible causes of a phenomenon are compared.
B.A problem is described and possible solutions are discussed.
C.A general idea is introduced and several specific examples are given.
D.A recommendation is analysed and rejected.

The color of the Red Sea is due to a minute alga, or sea plant, whose forms huge patches of a blood red tint.




A.a minute alga
B.sea plant
C.whose
D.forms

___________(27)




A.some
B.none
C.few
D.all

___________(32)




A.attempt
B.believe
C.do
D.accept

What does the author mean by staring that, "At interpersonal levels, tone may reflect ideas and feelings over and above the words chosen" (lines 7-8)?




A.The tone of voice can carry information beyond the meaning of words.
B.Feelings are more difficult to express than ideas.
C.Feelings are expressed with different words than ideas are.
D.A high tone of voice reflects an emotional communication

The word "it" in line 19 refers to _____.




A.education
B.consumption
C.production
D.homemaking

The paragraph preceding the passage probably discusses _____.




A.the industrialization and the bureaucratization of economic life the United States in the nineteen century.
B.the formal schooling in the United States in the nineteen century.
C.the urbanization in the United States in the nineteen century.
D.the most important means of integrating immigrants into American society in the nineteen century.

-------------, I still was able to get to the top of the mountain.




A.Even though unfit
B.Unfit as I was
C.While ever out of condition
D.Much as I’m unfit

Minh / use / live /farm /when /he /small boy.




A.
B.
C.
D.