A survey of the opinions of experts _________ that three hours of outdoor exercise a week ________ good for one’s health.
A. show; are B. shows; is
C. show; is D. shows; are
Can you make sure ______ the gold ring?
A. where Alice had put B. where did Alice put
C. where Alice has put D. where has Alice put
Jim ____________ the size of this board and has found that it ____________.
A. has measured; measures five metres in width
B. measured; is measured five metres wide
C. has measured; is measured five metres wide
D. measures; has a measure of five metres wide
You must have seen him off yesterday, _________?
A. haven't you B. didn't you
C. mustn't you D. needn't you
Flood damage cleanup is an unforgettable experience for me. I have seen a number of news reportson television showing houses that have been______ by natural flooding and how the different ___there are coping and starting their flood damage cleanup. I have always felt_____ for the families thathave become victims of flooding. However, I couldn’t imagine how they were ____ because I havenever experienced flooding or flood damage cleanup at first _____ until two years back.
My _____ experience happened when I woke up early one morning because of the ______ofwater. As I started to get out of bed to turn on the light, I felt cold muddy water at my _____. I thenrealized that the power was _____. This probably happened due to the heavy ______and strong windthat were brought by a hurricane during the ____ .
As the rains stopped, I decided to do my flood damage cleanup _____. Because I had only movedin the house and had only _____ a few belongings, the amount of damage was _______It involved onlywashing shoes and bags ______ soap and water.
It was a good thing that most of my things were _____ inside plastic buckets and most of thefurniture that I bought was made of _____ and plastic. This made my flood damage cleanup a lot easier.My cleanup work only ____ the removal of mud from the apartment floors. It was also a good thingthat the ______ had hardwood floors. Had the apartment been covered with carpet, I would have had to____ a lot having the carpet cleaned if not replaced with a new one.
1.A. drowned B. washed C. affected D. removed
2.A. citizens B. householders C. owners D. residents
3.A. sorry B. worried C. excited D. glad
4.A. feeling B. doing C. speaking D. thinking
5.A. view B. hand C. thought D. sight
6.A. cleanup B. flooding C. earthquake D. landslide
7.A. smell B. shape C. taste D. sound
8.A. head B. neck C. feet D. breast
9.A. out B. in C. on D. down
10.A. rain B. snow C. frost D. fog
11.A. morning B. afternoon C. evening D. night
12.A. slowly B. gradually C. quickly D. frequently
13.A. unfolded B. unpacked C. uncovered D. unloaded
14.A. great B. big C. small D. tiny
15.A. with B. by C. through D. in
16.A. thrown B. dipped C. displayed D. stored
17.A. wool B. metal C. paper D. leather
18.A. undertook B. began C. involved D. engaged
19.A. bedroom B. kitchen C. building D. apartment
20.A. spend B. cost C. pay D. Take
A kiln (窑) is a type of oven or furnace used to cure, harden, or burn certain materials. Depending onwhich materials are heated in it, a kiln may be square, tunnel shaped, or beehive shaped, and usually madeof brick or stone. 1. It may be set as low as sixty-five degrees to cure grain or as high as 3,200degrees to transform limestone to quicklime (熟石灰).
2.They have a variety of purposes. The cement(水泥) industry uses revolving kilns to heatand separate raw materials. Bricks, pottery, and china made from clay must be fired, or hardened, in kilns.Certain kinds of coal and wood must be kiln-dried before they can be used. Hobbyists use small kilns tofire a variety of ceramic(陶瓷) objects.
There are two main types of kilns. A periodic kiln, used to fire certain kinds of delicate china, is raisedto a high temperature and then completely cooled before its contents are removed. A continuous, or tunnelkiln contains several chambers, or zones, which heat, bake, and cool a product. Stacks of clay bricks movethrough a tunnel kiln on tracks. 3.
Gas, oil, and coal are all used to heat modern kilns. 4. But for special jobs, where cleanlinessand careful heat are important, kilns must be heated by electricity oven though it is more expensive. Smallkilns used in the home or in craft shops are also heated electrically because electricity is clean andconvenient.
5. When ancient people discovered that heat hardened some materials, they were able to makedurable household objects such as jugs and bowls. Today our museums display many kinds of ancientstatues and art objects that have lasted because they had been kiln-dried. They come from lands as far apartas China and Greece.
A. Its temperature may vary.
B. Then they come out, hardened, and cooled.
C. Kilns are used in industry and in craft-making.
D. Kilns have been in use for thousands of years.
E. An electric kiln is a heating chamber used to transform materials.
F. Most manufacturers use whichever material is cheapest in their area.
G. Clay, when heated properly, becomes hard enough to form bowls and plates.
