（ ） troublesome the problem is, he faces it with patience.

A.However B.No matter C.Despite D.Although

We can’t understand Uncle George, for he always （ ）whatever he says.

A.masters B.mumbles C.molests D.muzzles

She felt that she was too（ ） with problems to be able to study properly.

A.burdened B.tired C.grieved D.disturbed

Since about 1800,near the beginning of the Industrial Revolution, coal, petroleum, and gas have been used at a rapidly increasing rate. The supply of these（1） is limited, and electric power is very （2） in many places. Some scientists believe solar energy is the only （3） which can meet the world’s enormous（4）for power.Great progress had been made in harnessing the sun. Not only is the sun now used in cooking, （5） it also supplies power for （6） things as beacon lights for ships and airplanes. It（7）telephone lines, portable radios, electric clocks, hearing aids, and even communication. Some homes and office buildings in the United States are now being（8）with solar energy.The three most significant types of solar equipment（9） are the furnace, the still, and the cell. Solar furnaces heat water or air,（10）is then circulated through a building to make it comfortable.Solar stills are （11） important because they can provide （12） water at a relatively cheap rate. Salt can easily be （13） from sea water with a solar still.The most highly developed type of solar （14） equipment is the solar cell. Some cells are so （15）that they can turn 16 percent of the energy they receive from the sun（16） electric energy. One of the cell’s biggest advantages is （17）it can be made either small enough to carry（18） large enough to produce a current that can run an automobile. Besides, it has a very long life. It is still too expensive for the （19）consumer but when ways are （20）to produce it more cheaply, we can expect its use to be wide-spread.

A.materials B.ores C.reserves D.fuels
问题2：
A.abundant B.adequate C.scarce D.rare
问题3：
A.means B.source C.solution D.resource
问题4：
A.need B.desire C.necessity D.supply
问题5：
A.moreover B.besides C.however D.but
问题6：
A.some B.many C.such D.these
问题7：
A.connects B.operates C.drives D.manufactures
问题8：
A.heated B.burnt C.equipped D.built
问题9：
A.ever since B.no wonder C.in all D.so far
问题10：
A.that B.what C.which D.it
问题11：
A.specially B.especially C.essentially D.specifically
问题12：
A.fresh B.healthy C.boiled D.cool
问题13：
A.dissolved B.distinguished C.divided D.removed
问题14：
A.electric B.electronic C.power D.heating
问题15：
A.powerful B.resourceful C.efficient D.reliable
问题16：
A.through B.into C.by D.with
问题17：
A.how B.that C.because D.which
问题18：
A.but B.so C.or D.too
问题19：
A.tipical B.normal C.average D.general
问题20：
A.discovered B.invented C.disclosed D.revealed

It is announced that a wallet has been found and can be（ ） at the manager’s office.

A.declared B.obtained C.reclaimed D.recognized

s="" invention,="" lathes（="" ）.5.According to the passage, when wooden articles began to be mass-produced, what did many individual wood workers do?'>

Wood carving began as a necessity in America and developed into an art. Because of the lack of other materials, early settlers were forced to make tools and utensils out of wood. At first, these articles were whittled with a knife, but when pioneer craftsmen set up their primitive shops, most of them were fashioned on a lathe—a machine which holds an object and rotates it while it is being shaped by a tool.However, even after Massachusetts-born Blanchard designed a lathe which could turn irregular shapes—an innovation that made possible mass production of gunstocks, shoe lasts, oblong and square woodenware — craftsmen who could use knife and chisel skillfully were still in demand. Some found ready employment in shops of cabinetmakers while others carved decoys. Still others specialized in creating shop signs, shop figureheads, or in decorating interior woodwork. A few even accepted commissions to make busts of prominent citizens.

1.This passage most likely came from a longer work about early American（ ）.2.According to the passage, the first settlers used wood for their utensils and tools because it was（ ） .

3.The passage suggests that early shops for making tools were（ ）.4.It can be inferred from the passage that, before Thomas Blanchard's invention, lathes（ ）.5.According to the passage, when wooden articles began to be mass-produced, what did many individual wood workers do?

A.arts and crafts B.political leaders C.logging industries D.fashion design问题2： A.durable B.inexpensive C.available D.attractive问题3： A.not very sophisticated B.known for doing very quick work C.dependent on imported materials D.frequented only by fashionable people问题4： A.were not made of wood B.could not produce square objects in mass production C.were found only in cabinetmaking shops D.could be used to make most tools and utensils问题5： A.They moved out of Massachusetts B.They found work making specialized items C.They made demands on government leaders D.They took jobs on ships as sailors