How do farmers find more land for growing full-sun coffee？ 查看材料
A.They buy more land from other farmers.
B.They cut down trees.
C.They move to another country.
D.They turn grassland into farmland.
The firemen acted quickly because lives were at stake.
A.in danger
B.in despair
C.in condition
D.in control
_______ 查看材料
A.Unless
B.Once
C.If
D.Although
根据下面短文内容，回答题。
Approaches to Understanding Intelligences
What is the main idea of this passage？ 查看材料
A.How to understand intelligence.
B.The importance of intelligence.
C.The development of intelligence tests.
D.How to become intelligent.
_____ 查看材料
A.with
B.from
C.about
D.on
回答（56）题 查看材料
A.refers
B.concerns
C.turns
D.comes
_____ 查看材料
A.desire
B.quality
C.limitation
D.feature
Atlas was the god who held up the sky. 查看材料
A.Right
B.Wrong
C.Not mentioned
____ 查看材料
A.achieve
B.acquire
C.address
D.adopt
阅读材料，回答题。
Nanotechnology
Many of the grand challenges of today and the future are found in the question: "How are we going to solve the problems and make serious improvements in industrial manufacturing, disease control, environmental pollution control, global climate change, food production, transportation, communication, and others？"
Nanotechnology (纳米技术 ) promises to make revolutionary contributions.Within the next few years we can expect to see major improvements. Here are some possibilities the things to come.Nanotechnology is fundamentally changing the way materials and devices will be produced in the future.
Nanostructures, ceramics, polymers, metals, and other materials will have greatly improved mechanical properties.In fact, with the ability to build things atom-by-atom and molecule-by-molecule there will be new classes of structural materials.Nanotechnology will enable products to be lighter, stronger, smarter, cheaper,cleaner, and more precise.
The ability to synthesize nanoscale budding blocks with precisely controlled size and composition and then to assemble them into larger structures with unique properties and functions will revolutionize segments of the materials manufacturing industry. Nanotechnology is expected to bring about lighter, stronger, and programmable materials ; reductions in life-cycle costs through lower failure rates; innovative devices based on new principles and architectures ; and use of molecular cluster manufacturing.
Nanotechnology will provide new tools for medicine.It could radically change the way surgery is done.It will make it possible to do molecular scale surgery to repair and rearrange cells.Since disease is the result of physical disorder, misarranged molecules and cells, medicine at this level should be able to cure most diseases.
Mutations in DNA could be repaired and cancer cells, toxic chemicals, and viruses could be destroyed through use of medical Nan devices.
Nanotechnology enabled increases in computational power will permit the characterization of macromolecular networks in realistic environments.Such simulations will be essential elements in the development of biocompatible implants and in the drug discovery process. Nanotechnology has the potential to significantly impact energy efficiency, storage, and production, Nanotechnology can change the economics of energy production.
The passage deals mainly with______. 查看材料
A.grand challenge in manufacturing， medicine and computer industry
B.possibilities of nanotechnology"s contributions in the future
C.great changes caused by nanotechnology
D.practical application of nanotechnology
Paragraph 5____ 查看材料
A.Nuclear reactions as the lasting source of the sun"s energy
B.The most important source of energy
C.Types of electromagnetic energy
D.The machines used for energy generation
E.Seeking new sources of energy
F.The use of ultraviolet radiation in medicine
请在第__（52）__处填上正确答案。 查看材料
A.as many as
B.as well as
C.as soon as
D.as much as
Respiration plays a key role____ 查看材料
A.by keeping its original shape and colour
B.in the life of the cut flower
C.to produce carbon dioxide
D.for as long as possible
E.by controlling temperature
F.to replace the water and solution every day
_____ 查看材料
A.more
B.least
C.less
D.most
It will help you to understand the article if you____ 查看材料
A.find the topic sentences
B.find out the new words
C.keep reading fast
D.go to bed every day
E.keep a note of their reading speed
F.look at your watch every few minutes