首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
If the sun has enough【C1】______to warm and light the whole earth, it must have enough power to do other things,【C2】______. Can w
If the sun has enough【C1】______to warm and light the whole earth, it must have enough power to do other things,【C2】______. Can w
admin
2011-03-01
60
问题
If the sun has enough【C1】______to warm and light the whole earth, it must have enough power to do other things,【C2】______. Can we use the sun’s【C3】______energy to supply electricity, or at least to perform the function which electricity or other types of power usually perform? The answer is【C4】______.
For example, people have for many years been using the【C5】______heat of the sun to cook by solar【C6】______which have been built with several incurred【C7】______reflecting the sun and focusing the heat on the cooking element. This【C8】______can be used like a gas or electric stove; it is more expensive to make but it doesn’t need any【C9】______and so costs【C10】______to use. Another【C11】______of using solar energy is in house heating.
The【C12】______of energy we use most is electricity, and every day more is【C13】______. But electricity has to be made too, and to make it huge quantities of fuel is required -- oil, coal, gas and nowadays even uranium.
The question which【C14】______everyone today is: how long will these fuels【C15】______? Nobody knows it for sure,【C16】______most experts think it will soon be difficult to obtain sufficient electricity from these sources. It is possible that the sun can make a(n)【C17】______here, too.
Solar power has already been used to produce【C18】______heat. In Southern France a solar furnace has been built,【C19】______temperatures reach more than 3 000 centigrade. This furnace is not only used for experiment【C20】______, but could be used to produce steam for a power station.
【C14】
选项
A、worry
B、worries
C、worried
D、is worried
答案
B
解析
考查动词语态与一致性。由于句子主语是单数the question,所以谓语动词要用第三人称单数形式。而worry是及物动词,在这里不要用被动语态,所以答案是[B] 。
转载请注明原文地址:https://kaotiyun.com/show/Njkd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
【26】【33】
【26】【28】
What’sthelengthofthebridgeacrosstheMavudayerRiver?
What’sthelengthofthebridgeacrosstheMavudayerRiver?
LeeBeaty:Your"HealthForLife"articlesgiveexcellentadviceonsimplelifestylechangestoimprovehealth.Wheneverposs
Ifyouareworriedaboutthingsandareunderalotofstressatworkorschool,thenyouareprobablynotsleepingwell.Worr
Ifyouareworriedaboutthingsandareunderalotofstressatworkorschool,thenyouareprobablynotsleepingwell.Worr
Ifyouareworriedaboutthingsandareunderalotofstressatworkorschool,thenyouareprobablynotsleepingwell.Worr
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
YouaregivenapictureandrequiredtodescribethesceneyoucanseeinitwiththetitleInsideandOutside.
随机试题
患者,男,55岁。阵发性腹痛、腹胀。无排气排便2天。2年前曾因急性化脓性阑尾炎行阑尾切除。查体:腹部膨隆,可见肠型,腹软无压痛,肠鸣音亢进。腹部X线片可见中下腹部小肠有数个液气平面,盲肠、升结肠肠腔扩张。最可能的诊断为
谈判者问不存在根本性冲突,利益完全一致,指的是()
谬误
谷氨酰胺的生物学作用有
A、硫酸铜B、溴水和氨试液C、发烟硝酸和醇制氢氧化钾D、甲醛硫酸试液E、重铬酸钾硫酸阿托品特征鉴别反应所采用的试剂是( )。
氯化物检查法中使用的试剂有
徽州地区有“徽派三雕”,又有“徽派四雕”的说法,“徽派四雕”是指()。
现代人事行政的更新机制包括()。
设有如下程序:Subf(xAsInteger,ByValyAsInteger)x=2*x:y=y+xEndSubPrivateSubCommand1_Click()DimaAsI
老师每节课都会点名。
最新回复
(
0
)