单选题While photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
单选题The American zoologist Dian Fossey conducted field studies of wild gorillas that disproved old beliefs that gorillas were violence and aggressive.
单选题The phrase "this regionalization scheme" in line 19 refers to the
单选题In the late 1800's ,United States painter Thomas Eakins (develop) a (broad) ,powerful Realist (style that) became (almost) expressionistic in his later years.
单选题Philosophy tries (to discover) the nature of (true) and knowledge and to find (what is) of basic value and (importance) in life.
单选题Cities differ from towns in the size, density, and diversity of their population. The city offers a wider variety of goods and services, as well as more extensive employment and cultural opportunities. City life is characterized by impersonal and formal social relationships, greater privacy, and more lifestyle choices--a way of life referred to as urbanism. The urban spirit is sophisticated and dynamic, stimulating the mind through contrasts and encouraging tolerance of differences. However, urbanism is not restricted to city dwellers; it can be considered a trait of all modern societies at a high level of technological development. The urban spirit spreads beyond the city via the mass media: television, movies, music, and the Internet. 6. Which sentence below best expresses the essential information in the highlighted sentence in the passage?
单选题What is the lecture mainly about?
A. How ancient rivers created deserts
B. How scientists work in the desert
C. How to walk on sand dunes
D. How sand dunes shift position
单选题In a stock company, a troupe of actors performs in a particular theater, presenting plays from its repertory of prepare
productions.
单选题Some advantages of celluloid are that it is inexpensive and durable, takes a highly
A B C
polish, does not warp or discolor, and is not affected by moisture.
D
单选题The word "intriguing" in line 5 is closest in meaning to
单选题Statistics indicate that approximate every 22 years--within a range of 3 to 4 years--a major drought occursin the United States.
单选题The major (economic) activities of Cheyenne, Wyoming, (include) transportation, (chemicals), tourism,(but) governmental activities.
单选题Which of the following questions does the passage mainly answer?
单选题(Many folk songs) were originated to accompany (manual) work (or to) mark a specific (ceremonies).
单选题In his animated films, Walt Disney created animals that talk and act like people while retaining its animal traits.
单选题The term "ice age" refers to any of several periods of time when glaciers covered considerably more of Earth's surface......
(a)as is today
(b)than today is
(c)than they do today
(d)that today
单选题Strange Victory, Sara Teas dale's smallest and most perfect collection
A B
of poems, appear in print in 1933.
C D
单选题The word "they" in line 17 refers to
单选题Bacteria are one of the most abundant life forms on Earth, growing on and inside another living things, in every type of environment.
单选题The word "insignificant" in line 16 is closest in meaning to