IELTS
100 句
There is considerable debate over how we should react if we detect a signal from an alien civilisation(/ˌsɪv.əl.əˈzeɪ.ʃən/).
The two world wars, which interrupted the supply of raw material from Japan, also stifled the European silk industry.
Migration is a complex issue, and biologists define it differently, depending in part on what sorts of animals they study.
One way is by organising backstage tours, so people can be shown round the building and learn how a theatre operates.
what I'm afraid will happen is that books and magazines will all disappear, and there'll just be rows and rows of computers.
The psychological laboratory has a strong claim to legitimacy and evokes trust and confidence in those who perform there.
The displays of art museums serve as a warning of what critical practices can emerge when spontaneous criticism is suppressed.
Vertical farming is an attempt to address the undoubted problems that we face in producing enough food for a growing population.
It was not until 1500 BC, however, that the first hollow glass container was made by covering a sand core with a layer of molten glass.
Many theorists believe the ideal boss should lead from behind, taking pride in collective accomplishment and giving credit where it is due.
Though we might think of film as an essentially visual experience, we really cannot afford to underestimate the importance of film sound.
As far as goods transport is concerned, growth is due to a large extent to changes in the European economy and its system of production.
In order to track temporal hours during the day, inventors created sundials, which indicate time by the length or direction of the sun's shadow.
Lee Hall's analysis of figures comparing the times of the fires and the proportion of seed that germinated was done in a lot of detail—very impressive.
While the Inuit may not actually starve if hunting and trapping are curtailed by climate change, there has certainly been an impact on people's health.
It would seem that the brain sees these images as puzzles, and the harder it is to decipher the meaning, the more rewarding is the moment of recognition.
Such material, even where it appears comparatively trivial, can have a serious effect on the company, supplier or customer if it falls into the wrong hands.
If the glass were kept hot enough, it would flow over the molten tin until the top surface was also flat, horizontal and perfectly parallel to the bottom surface.
It was once assumed that improvements in telecommunications would lead to more dispersal in the population as people were no longer forced into cities.
Compared to language, all other inventions pale in significance, since everything we have ever achieved depends on language and originates from it.
It's true there are new regulations for mercury emissions from power plants, but these will need billions of dollars to implement and increase cost for everyone.
The teacher's task is to assist the students to apply what they have learned paraconsciously, and in doing so to make it easily accessible to consciousness.
However, if one of the parties in a conflict sees human resources as simply a mouthpiece for the chief executive, then an external mediator might be able to help.
Summer leaves are green because they are full of chlorophyll, the molecule that captures sunlight and converts that energy into new building materials for the tree.
If clothing fails to meet these standards, as determined by the employee's supervisor, the employee will be asked not to wear the inappropriate item to work again.
The participants weren't told beforehand whether the tunes were composed by humans or computers, but were asked to guess, and then rate how much they liked each one.
If identical twins are more similar to each other with respect to an ailment than fraternal twins are, then vulnerability to the disease must be rooted at least in part in heredity.
Finally, perhaps the most graphic expressions of self-awareness in general can be seen in the displays of rage which are most common from 18 months to 3 years of age.
If we can understand how geography affects our health no matter where in the world we are located, we can better treat disease,prevent illness, and keep people safe and well.
Similarly, people who collect dolls may go beyond simply enlarging their collection, and develop an interest in the way that dolls are made, or the materials that are used.
He wanted to give people a feeling of suspense as they see the building first from a distance, and then close-up, and the shape of the building as a whole was that of a box.
The reason often given for the low regard in which smell is held is that, in comparison with its importance among animals, the human sense of smell is feeble and undeveloped.
Some of you suggested an Italian restaurant, but I must confess that I decided to book a Lebanese one, as we have plenty of opportunities to go to an Italian restaurant at home.
As these ancestral tortoises settled on the individual islands, the different populations adapted to their unique environments, giving rise to at least 14 different subspecies
The continuous and reckless use of synthetic chemicals for the control of pests which pose a threat to agricultural crops and human health is proving to be counter-productive.
Both social and cognitive types of laughter tap into the same expressive machinery in our brains, the emotion and motor circuits that produce smiles and excited vocalisations.
Opinion polls suggest that many people nurture the belief that environmental standards are declining and four factors seem to cause this disjunction between perception and reality.
Natural soil fertility is dropping in many areas because of continuous industrial fertilizer and pesticide use, while the growth of algae is increasing in lakes because of the fertilizer run-off.
Within the span of several centuries, the Lapita stretched the boundaries of their world from the jungle-clad volcanoes of Papua New Guinea to the loneliest coral outliers of Tonga.
Multiplan insurance may not cover all pre-existing medical conditions——so before you leave be sure to check with them about any long-term illnesses or disabilities that you have.
As the medical world continues to grapple with what's acceptable and what's not, it is clear that companies must continue to be heavily scrutinized for their sales and marketing strategies.