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Historically,space food was mainly provided in pastes(糊) and eaten from tubes.In 1961,the first food was eaten in space by Yuri Gagarin,who became the first man in space and the first person to eat in space.Aboard Vostok 1 on 12 April 1961,Gagarin ate beef paste from a tube by squeezing it into his mouth.
   As science and technology have provided us with new forms of food processing and packaging,the foods have also improved to now resemble many meals we have on Earth.When planning which foods to send into space,they are divided into the following groups:
   Fresh foods - produce with a two-day shelf life,such as fruit and vegetables,is refrigerated onboard the spacecraft and consumed quickly to avoid going bad.As vitamins and nutrients can generally be satisfied by other means,this product is sent to keep spirits high.
   Irradiated(輻照的)foods-meat and dairy produce have been specially processed before packaging to increase the items' shelf life.
   Intermediate moisture(水分適中) foods - these foods contain a small quantity of water and are often soft.Processes such as salting or sun-drying are used in the creation of these items and require no further preparation.
   Natural form foods - foods such as nuts,biscuits,and chocolate bars are simply packaged and ready to eat.
   Rehydratable(可復水的)foods and drinks-for a long time,this was the standard method of preparing food for space.Removing the water from the food or drink makes it difficult for bacteria to multiply and dramatically extends the product's shelf life,and reduces the chance of them going bad.These products have water returned to them when astronauts are ready to eat.
   Today,astronauts have a range of food to choose from.On the ISS(International Space Station),food is delivered refrigerated or dehydrated(脫水的) once every 90 days,which can be cooked in microwaves.Different nations aboard the ISS provide their traditional courses and snacks,helping the crew to share their cultures while having a taste of home.

(1)Why is Gagarin mentioned in the text?
C
C

A.To tell people astronauts' daily life.
B.To inform readers of the first food in space.
C.To show the form of food once eaten in space.
D.To indicate the poor living conditions in space.
(2)What does the underlined word "resemble" mean in Paragraph 2?
D
D

A.Replace.
B.Change.
C.Add to.
D.Look like.
(3)Which kind of food is processed by salt?
C
C

A.Fresh foods.
B.Irradiated foods.
C.Intermediate moisture foods.
D.Natural form foods.
(4)What is mainly talked about in the text?
B
B

A.The food history in space.
B.What astronauts feed on in space.
C.The astronauts' favorite food.
D.What leads to the varied space food.

【考點】說明文;科技
【答案】C;D;C;B
【解答】
【點評】
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發(fā)布:2024/5/27 14:0:0組卷:1引用:1難度:0.5
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