15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 38)

The origins of chess are uncertain, (2) ______ there are a number of legends regarding its invention.

It is (3)______ the word ‘chess’ comes from ‘shah’, the Persian word for ‘King’ and that ‘checkmate’

the game’s winning (4)______, comes from the phrase ‘shah mat’,

, (5)______ ‘the king is dead’.

The (1) ______ manager sat behind a large desk.

Also, as a member of staff, I was (2) ______ to some benefits, including discounts.

When I eventually started, I was responsible (3) ______ the toy section.

They made working there fun even when we had to deal with customers (4) ______ got on our nerves

(5) ______, working there was a great experience which I will never forget.

Why is it that many teenagers have the energy to play computer games until late at night but can’t find the energy to get out of bed (39) _________ for school?

According to a new report, today’s generation of children are in danger of getting so (40) _________ sleep that they are putting their mental

that they are putting their mental and physical health at (41) _________ .

Adults can easily survive on seven to eight hours’ sleep a night, (42) _________ teenagers require nine or ten hours.

According to medical experts, one in five youngsters (43) _________ anything between two and five hours’ sleep a night less than their parents did at their age.

The development of open learning, (25)______ it possible to study when it is convenient for the students,

has increased the opportunities available (26)______ many people.

. This type of study was formerly restricted to book-based learning and (27)______ course but now includes courses on TV, CD-ROM or the Internet, and self-access courses at language or computer centers

Americans believe that education is important at all stages of life and should not stop (28) ______ people get their first job.

About half of them are trying to get qualifications and skills to help them with their jobs while the (29)______ are taking recreational subjects for personal satisfaction.

Each (31) ______ color from the spectrum is then sent to your eyes.

After studying rainbows in (32) ______, Sir Isaac Newton was able to explain how they are formed.

However, he was color blind, so he had to rely on the eyes of his assistant, who could easily (33) ______ all the seven colors: red, orange, yellow, green, blue, indigo and violet.

Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (34) ______ a rainbow, so the colors are in reverse order and not as bright as primary rainbows.

In fact, it is impossible to do this, because a rainbow has no end - as you go towards the point where the rainbow seems to touch the ground, it moves away from you as quickly as you (35) ______.

Researchers are questioning whether exposure to these radio waves might (1) ______ to brain cancer.

The scientific evidence does not enable us to say with certainly that mobile phones are categorically (2) ______.

Numerous studies are now going (3) ______ in various countries

(4) ______, these studies are preliminary and the issue needs further, long-term investigation.

It is also thought that young people (5) ______ bodies are still growing may be at particular risk.

(6) ________, we are easily influenced by the people around us.

There is nothing wrong with this. It is probably a smarter way to make decisions than (7) ________ on only our own opinions.

It is because they are so similar with (8)________ to how much money they make and what television ads they watch that they independently arrive at the same decision?

Or do they copy one another, perhaps (9) ________ envy or perhaps because they have shared information about the products?

When one of a person’s ten nearest neighbours bought a car, the chances (10) ________ that person would buy a car of the same brand during the next week and a half rose by 86 per cent.

Indeed, some people fear that text messaging may actually be having a negative (11) ________ on your people’s communication and language skills, especially when we hear that primary school children may be at rick of becoming addicted to the habit.

(12) ________, in this case, it’s difficult to view the results as anything but positive.

Twenty of the birds are about to take to the skies with the task of measuring air pollution, each (13) ________ with sensor equipment and a mobile phone.

The readings made by the sensors will be automatically converted into text messages and beamed to the Internet – (14) ________ they will appear on a dedicated ‘pigeon blog’.

Each bird will carry these in a miniature backpack, (15) ________, that is, from the camera, which will hang around its neck.

Is it worth reading books, (16) _____ nowadays there are so many other forms of entertainment?

They might add that television is more exciting and that viewers can relax as they watch their favourite (17) _____.

Of course, it may be so (18) _____ that you can’t stop!

There are many different kinds of books, so you can choose a crime novel or an autobiography, or a book (19) _____ gives you interesting information.

but I can (20) _____ up television easily enough. You can’t watch television at bus stops!

For the experiments, they sat with their eyes (21)             so they could not see, and with their backs to other children, who were told to either stare at them or look away.

In a total of more than 18, 000 trials (22) _____ worldwide, the children correctly sensed when they were being watched almost 70% of the time.

The experiment was repeated with the added precaution of putting the children who were being watched outside the room, (23)              from the starters by the windows.

The results, (24)                     less impressive, were more or less the same.

Dr. Sheldrake, the biologist (25)                       designed the study, believes that the results are convincing enough to find out through further experiments precisely how the staring effect might actually came about.