组卷网 > 初中英语综合库 > 主题 > 人与社会 > 科普知识与现代技术 > 科普知识
题型:完形填空 难度:0.4 引用次数:162 题号:14086147

Space suits don’t just make astronauts (宇航员) look cool. Without these special suits, astronauts wouldn’t be able to _________ their spacecraft (宇宙飞船). That is to say, they wouldn’t be able to walk on the _________ or work outside the International Space Station.

_________ do astronauts need to wear space suits?

Space is a _________ place for human beings. Firstly, there is no air to breathe (呼吸). Secondly, space also has high levels of radiation (辐射) that can pass _________ our bodies and make us sick. Thirdly, some parts of space are really _________ while other parts are very hot. So astronauts could die in just a few seconds if they stepped outside their spacecraft without their suits. With a space suit, astronauts can move around in _________ for several hours.

★What can a space suit do for an astronaut?

Space suits keep astronauts safely sealed (密封的) inside. A backpack sends O2 (氧气) in to let astronauts breathe _________. At the same time, the CO2 (二氧化碳) that astronauts breathe out is sucked away (吸走). The suit also _________ them from harmful radiation and fast-moving space dust. Under the space suit is another suit that looks like a pair of tight pajamas (睡衣) with little pipes (管子) running through them. Water runs through these pipes to __________ astronauts because wearing a space suit can make astronauts very hot!

1.
A.leaveB.liveC.stayD.keep
2.
A.skyB.earthC.moonD.sun
3.
A.WhenB.WhatC.HowD.Why
4.
A.safeB.beautifulC.darkD.dangerous
5.
A.inB.throughC.acrossD.around
6.
A.coldB.hotC.coolD.warm
7.
A.roomB.airC.spaceD.ship
8.
A.quicklyB.normallyC.easilyD.possibly
9.
A.stopsB.helpsC.affordsD.protects
10.
A.warm upB.cool offC.look afterD.pick up

相似题推荐

完形填空(约270词) | 较难 (0.4)
文章大意:本文是一篇说明文,主要介绍了吸烟的一些坏处。

【推荐1】There are no physical reasons to start smoking. The body doesn’t need tobacco(烟草)the way it needs food, water, sleep, and ________. In fact, many of the chemicals in cigarettes are actually poisons that can kill.

Over the long term, smoking leads people to ________ health problems like cancer, organ(器官)damage, and heart disease. These diseases make people less ________. Each time a smoker lights up, that ________ cigarette will take about 5 to 20 minutes off the person’s life.

Smokers not only develop wrinkles and yellow teeth, they also ________ bone density(骨密度), which increases their risk of osteoporosis and causes people’s bones to break more easily. ________, smokers also get less active than nonsmokers because smoking affects lung power.

Long-term health problems aren’t the only ________ of smoking. Smokers experience many of these following problems:

Bad skin. Smoking can prevent ________ and nutrients(营养)from getting to the skin. That is why smokers often appear pale and ________.

Bad breath. Cigarettes will leave smokers with a bad breath, which may cause ________ lung capacity(肺活量).

Bad-smelling clothes and hair. The smell of smoke would ________ not just on people’s clothing, but on their hair, furniture, and cars. And it’s often hard to get the smell of smoke out.

Reduced sports performance. People who smoke usually can’t compete with nonsmokers of the same ________ because smoking affects sports performance.

Greater risk of injury(受伤)and slower healing time. Studies show that smoking influences the body’s ability to ________ collagen(胶原质). As a result, common sports injuries will usually get well more ________ in smokers than nonsmokers.

Increased risk of getting sick. Smokers get more ________ than nonsmokers. And people with certain health conditions become more sick if they smoke.

1.
A.activityB.exerciseC.feelingD.thought
2.
A.developB.discoverC.solveD.stop
3.
A.friendlyB.confidentC.organizedD.active
4.
A.expensiveB.singleC.deliciousD.healthy
5.
A.improveB.changeC.loseD.treat
6.
A.OtherwiseB.MoreoverC.HoweverD.Then
7.
A.excuseB.advantageC.resultD.purpose
8.
A.oxygenB.foodC.lightD.dust
9.
A.unhappyB.unluckyC.unhealthyD.uncomfortable
10.
A.lowerB.slowerC.strongerD.faster
11.
A.liveB.flyC.appearD.remain
12.
A.weightB.areaC.ageD.experience
13.
A.recycleB.produceC.collectD.prepare
14.
A.slowlyB.successfullyC.easilyD.closely
15.
A.restB.joyC.energyD.illness
2022-05-17更新 | 176次组卷
完形填空(约250词) | 较难 (0.4)
文章大意:本文介绍了实验室咖啡的情况,包括发展以及优点等。
【推荐2】请先阅读下面短文,掌握其大意。然后从各小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

Finnish researchers say they have produced coffee in a laboratory that smells and tastes very similar to the real thing. The team reports that lab-grown coffee could be ________ as climate change continues to influence traditional coffee farming.

Scientists at Finland’s VTT Technical Research Center ________ cell cultures(培养物)from the leaves of coffee plants. During the research, scientists make cell cultures float(漂浮)in bioreactors(生物反应器)________ nutrients(营养的). The same ________ is used to make other kinds of animals and plant-based products.

Heikki Aisala is a VTT researcher who oversaw(监管)the Process. Aisala said that cups of the cellular(细胞的)coffee ________ can’t pass taste tests if it is compared with ________ coffee. Aisala said lab-grown coffee is completely ________ from traditional coffee. ________ tastes like putting different types of coffees together. The researcher added that while the cellular coffee is not ready for the market yet, it just looks like ________ at the moment. Aisala believes that it is possible that the lab-grown products could one day ________ into a multi-billion-dollar industry.

VTT Research team leader Heiko Rischer said cell cultures offered a more ________ way to make coffee. ________ coffee is in high demand, many countries are opening up more land to ________ coffee beans. This causes increased deforestation(滥伐森林). Rischer said the environmental ________ of lab-grown coffee include reduced use of pesticides(农药)and fertilizer and less need to ship coffee beans long distances to markets.

In Europe, some people also worry about whether coffee lovers will actually drink the lab-grown ________. A Reuters reporter put that question to Satu, a server in a Helsinki coffee shop.

1.
A.impossibleB.difficultC.importantD.interesting
2.
A.inventedB.madeC.discoveredD.created
3.
A.agreed withB.dealt withC.filled withD.disagreed with
4.
A.aimB.wayC.chanceD.thing
5.
A.terriblyB.completelyC.probablyD.finally
6.
A.normalB.localC.internationalD.traditional
7.
A.greatB.differentC.sameD.delicious
8.
A.ItB.HeC.SheD.They
9.
A.leavesB.coffeeC.drinksD.beans
10.
A.developB.improveC.makeD.become
11.
A.friendlyB.environmentalC.usefulD.creative
12.
A.WhileB.WhenC.HowD.Because
13.
A.provideB.putC.growD.give
14.
A.disadvantageB.advantagesC.situationsD.conditions
15.
A.creationB.inventionC.discoveryD.product
2022-08-20更新 | 142次组卷
完形填空(约170词) | 较难 (0.4)
文章大意:本文主要介绍了在美国无线电广播为人们发出恶劣天气和危险事情的警报,由于这种警报,避免了许多不必要的伤害和损失。

【推荐3】We almost hear or watch the weather report on the radio or TV every day. But there is a special _________ in the Charles F. Johnson Elementary School in New York. It gives people warnings (警报) about _________ weather.

One day, there came a _________ from the radio. This sound brought the piece of news: _________ storm (暴风雨) was coming. William Tomic, the headmaster of the school, asked teachers _________ children indoors and put them in a _________ place at once.

A few minutes later, the storm came. However, _________ the warning of the radio and quick work of the headmaster, no one was hurt.

“The radio really did work very well. We were _________ about its work,” William Tomic said, “The parents were happy, too.”

_________ government hopes there will be more such successful stories. It plans to give this kind of radios to all 97,000 public schools in the country.

Every year, more than 10,000 thunderstorms, 2,500 floods, 1,000 tornadoes (龙卷风) and some hurricanes take place in the US, so the warning radios are very __________. They not only give people warnings about bad weather, but also give warnings about other dangerous things.

1.
A.TVB.radioC.magazine
2.
A.niceB.snowyC.bad
3.
A.soundB.stormC.tornado
4.
A.hardB.strongC.heavy
5.
A.bringB.to bringC.brought
6.
A.safeB.dangerousC.wet
7.
A.becauseB.because ofC.although
8.
A.surprisedB.scaredC.happy
9.
A.The UKB.The UNC.The US
10.
A.usefulB.interestingC.exciting
2022-05-22更新 | 78次组卷
共计 平均难度:一般