题目内容（请给出正确答案）

[单选题]

what has caused such a strange family system to die away（)？

A.The fact that the mother has not got any brother.

B.the fact that the father has got his own house and lan

C.The changes in economic relations.

D.The changes in family relationships.

查看答案

如果结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装优题宝APP，拍照搜题省时又省心！

更多“what has caused such a strange…”相关的问题

第1题

What has the telephone done to us, or for us, in the hundred years of its existence？ A few

effects suggest themselves at once. It has saved lives by getting rapid word of illness, injury, or fire from remote places. By joining with the elevator to make possible the multi-story residence or office building, it has made possible -- for better or worse -- the modern city. By bringing about a great leap in the speed and space with which information moves from place to place, it has greatly accelerated the rate of scientific and technological changes and growth in industry. Beyond doubt it has seriously weakened if not killed the ancient art of letter writing. It has made living alone possible for person with normal social impulses; by doing so it has played a role in one of the greatest social changes of this century, the breaking up of the multi-generational household. It has made the war chillingly more efficient than formerly. Perhaps though not provable (可证实), it has prevented wars that might have arisen out of international misunderstanding caused by written communication. Or perhaps--again not provable--by magnifying and extending irrational personal conflicts based on voice contact it impartially disseminates (传播) the useful knowledge of scientists and the nonsense of the ignorant, the affection of the affectionate and the malice (恶意) of the malicious.

What is the main idea of this passage？

A．The telephone has helped to save people from illness and fire.

B．The telephone has helped to prevent wars and conflicts.

C．The telephone has made the modern city neither better nor worse.

D．The telephone has had positive as well as negative effects on us.

点击查看答案

第2题

根据以下内容回答题：A volcanic eruption in Iceland has sent ash across northern Europe．Airl

根据以下内容回答题：

A volcanic eruption in Iceland has sent ash across northern Europe．Airlines have stopped or changed the flights across the Atlantic Ocean，leaving hundreds of passengers stuck in air-ports．

Grimsvoto is oDe of the largest and most active volcanoes in Europe．What makes Grimsvoto different is that it lies under a huge glacier(冰川)of ice up to 12 meters thick．The hot volcano heats up the ice above it，which then forms a layer of water between the glacier and the volcano．This layer of water puts pressure on the volcano，keeping it stable．As the water flows out from under the glacier，the pressure lifts．The lava(岩浆)from the volcano then comes up to the surface．This is exactly what happened today．

Now．airlines have to make changes to their flights SO as not to fly through the clouds of volcanic as．h．According to．KLM，one of Europe’s biggest airlines，airplanes cannot go under the cloud or over it．Going through the cloud can result in ash getting stuck in the airplane’s engines，causing damage to the plane．

The eruption has also caused problems for animals in Iceland．The volcano left ash and sharp，glass-like rocks all over the countryside．Farmers are keeping their animals inside to stop them from eating ash—covered grass or the sharp objects．

What makes Grimsvoto different from other volcanoes？查看材料

A.It is below-ice．

B.It lies under the sea．

C.It is the largest volcano．

D.Its lava affects the airlines．

点击查看答案

第3题

The war has _________ hardships on the population of the area.

A.caused

B.forced

C.imposed

D.enforced

点击查看答案

第4题

回答下列各题 We do not know how the first fire was 21 ．Early fires on the earth were ce

rtainly caused by nature，not by Man，some were caused by lightning in a storm；22 ，perhaps，by the hot material which came out of a volcano．Quite possibly，at times，the heat of the sun set light 23 some dry grass or leaves．At first Man，like other animals，was probably afraid of fire． 24 great was the power of fire that he feared it and worshipped it．Gradually，however，with his better power of thinking，he overcame his fear．Probablly he overcame most of his fear when he 25 how to make fire for himself．Throughout the ages he has learned more about fire，how to control it，and how to use it 26 many ways．Now fire is no longer a master of a god；it is a 27 ． We call only guess how 28 first learned that a fire was useful and what uses he made of it．By 29 a burning stick from fire which had been started naturally，he could make afire at his own“home”．He could keep the fire burning by adding more dry grass．1eaves and wood．The‰30 the chief purpose of frightening animals away．He discovered，by some accident，that flesh roasted in front of a fire 31 better．Then he found that roasted flesh would keep longer，without going bad， 32 uncooked flesh．It must have been much later that Man learned to cook food by heating it with 33 water or with steam．He could not use such methods 34 he had learned how to make pots 35 holding water．

A.made

B.produced

C.given

D.opened

点击查看答案

第5题

In former times doctors in Taiwan, who were considered saviors, were greatly admired. This

is not only because they were able to relieve sick people of their pain and save their lives, but because they demonstrated admirable willingness to help the sick.

Now in this industrialized world people are inclined to choose material possessions. This is true of doctors, too. The high income of doctors is the envy of other people. Many high school graduates are eager to get into medical colleges, and countless girls consider doctors to be their best choice of husbands. For many years the public has charged that doctors in public hospitals demand money from patients. The amount of money the patients give determines the kind of treatment they receive. It has also been said that drug companies have to pay the doctors so that the latter will use their products.

Recently a large medicine factory set up by the U.S. Investors declared that it will stop giving "kickbacks" to doctors as the factory bas spent too much to promote sales over the years. This declaration has caused quite a stir in our society. We wonder what the officials who have denied the dealings mentioned above will say about this.

According to the passage why did the doctors in Taiwan deserve our highest admiration in former times？ ______.

A．Because they were a group of qualified doctors

B．Because they ranked first in wealth

C．Because they were able to cure the sick of poverty

D．Because they were the doctors with medical morals as well as medical skill

点击查看答案

第6题

The process of urbanization has caused many problems, the major one is ______.A．economyB．t

The process of urbanization has caused many problems, the major one is ______.

A．economy

B．the growth of poverty in cities

C．education