![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
The paper machine produced paper in rolls instead of().
A.pages
B.pieces
C.strings
D.sheets
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.pages
B.pieces
C.strings
D.sheets
听力原文:M: Could you show me that once more?
W: Sure, put the paper into the machine, set your margin, and put your fingers on the keys. Now you're ready.
Q: What is the woman doing?
(16)
A.Typing.
B.Drawing a picture.
C.Doing exercise.
D.Playing the piano.
听力原文:M: Allen is in the basement trying to repair the washing machine.
W: Shouldn't he be working on his term paper?
Q: What does the woman think Allen should do?
(16)
A.Move the washing machine to the basement.
B.Turn the basement into a workshop.
C.Repair the washing machine.
D.Finish his assignment.
W: Why bother him? I'll show you how easy it is to work the machine.
Q: What does the woman mean?
(16)
A.The man couldn't make any more copies.
B.The clerk doesn't like to be bothered.
C.The machine was just repaired.
D.She can teach the man to use the machine.
此题为判断题(对,错)。
听力原文: Each day every person in the United States throws away more than five pounds of garbage. There is more garbage now than ever before and most of it is made up of the packages and cans in which we buy our food. The traditional way of getting rid of solid wastes is quickly becoming inadequate. Many cities are experimenting with newer ways of handling their growing piles of garbage. One of these new ways is "recycling" .Through recycling usable materials are taken out of garbage and made into something else. These usable parts of garbage are put through the cycle of going from a raw material to a finished product again.
In some cities a machine called Hydrapulper is being used to help recycle garbage. A Hydrapulper is like a huge mixing machine. The garbage is dropped onto a conveyor belt that feeds the machine. At the same time, water is pumped into the Hydrapulper. With a mixing action, the Hydrapulper throws out the heavy metal objects that can later be sold as waste metal, the rest of the garbage -- paper, food, plastic, rubber, glass, wood, leaves, and other items -- falls apart. The waste is then mixed with water and carried to another piece of equipment where glass, sand, and small pieces of metal are thrown out. With the Hydrapulper, up to 95 percent of the original garbage is made again useful. The rest is turned into furnace ash.
(30)
A.It takes some materials out of garbage.
B.It separates garbage into useful and useless things.
C.It just drops the garbage onto a conveyor belt that feeds the machine.
D.It pumps water into garbage.
Today, historians can 【C4】______ many old books and documents without travelling very far. Rare books, old letters, and other historical documents are 【C5】______ . Many different 【C6】______ can now have copies. Microfilming is a photographic process which copies and reduces pages of printed or wirtten matter【C7】______ small tells of film. To read microfilm, the user 【C8】______ the reel in a machine. The machine then【C9】______ a lull-sized image on a glass screen. 【C10】______ 5,000 book pages can be copied on one reel of microfilm. A reel takes up less storage space than a book and can be mailed 【C11】______ .
【C12】______ . a rare book or other document has been microfilmed, the 【C13】______ can be stored and protected from damage or theft. Some microfilms are stored in fireproof 【C14】______ . They will be available even if the originals are 【C15】______ or lost.
American students of European history can now see, on microfilm, documents 【C16】______ back to the time of King Henry Ⅶ England. They can examine 【C17】______ manuscripts from the Vatican Library in Rome. A European student of American history can consult the records of the first United States Congress, or the 【C18】______ of the first United States Census of 1790. Each year, more old and rare material is 【C19】______ to microfilm.
Today's newspapers, printed on a kind of paper that deteriorates rapidly, are being copied on microfilm. Historians are already consulting 【C20】______ .
【C1】
A.To consult
B.To consider
C.To suppose
D.To think
Food which is kept too long decays because it is attacked by yeasts (酵母菌), moulds (霉) and bacteria (细菌). The canning process, however, seals the product in a container so that no infection can reach it, and then it is sterilized (消毒) by heat. Heat sterilization destroys all infectious present in food inside the can. No chemical preservatives are necessary, and properly canned food does not deteriorate during storage.
Today vegetables, fish, fruit, meat and beer are canned in enormous quantifies. Foods that were previously seasonal may now be eaten at any time, and strange foods are available far from the countries where they are grown. The profitable crops many farmers now produce often depend on the proximity (邻近) of a canning factory.
The first stage in the canning process is the preparation of the raw food. Diseased and waste portions are thrown away; meat and fish are cleaned and trimmed; fruit and vegetables washed and graded for size. The jobs are principally done by machine
The next stage, for vegetables only, is blanching. This is immersion (浸洗) in very hot or boiling water for a short time to remove air and soften the vegetable. This makes it easier to pack into cans for sterilization. Some packing machines fill up to 400 cans a minute. Fruit, fish and meat are packed mw and cold into cans, and then all the air is removed. When the cans are sealed, the pressure inside each can is only about half the pressure of the outside air. This is "vacuum" packing.
During the sterilization process which follows, the cans are subjected to steam or boiling water, with the temperature and duration varying according to the type of food. Cans of fruit, for example, take only 5-10 minutes in boiling water, while meat and fish are cooked at higher temperature for longer periods. After sterilization, the cans are cooled quickly to 32℃, to prevent the contents from becoming too soft.
The final stage before dispatch to the wholesale or retail grocer is labeling, and packing the tins into boxes. Nowadays, however, labeling is often printed on in advance by the can maker and no paper labels are then required.
Food deteriorates during storage because ______.
A.necessary chemical preservatives are totally absent from it
B.it is infected with yeasts, moulds and bacteria
C.heat sterilization destroys infections present in it
D.it isn't fit for storage
A.Machine too Machine
B.matter too matter
C.Machine to Machine
D.matter to matter
A.Make a profitable investment.
B.Buy a new washing machine.
C.Get parts for the machine from Japan.
D.Have the old washing machine fixed.
A.Manufacturing,Machine,Material,Method,Environment
B.Man,Machine,Material,Method,Environment
C.Man,Machine,Material,Management,Environment
D.Man,Machine,Material,Month,Environment