
代號:2801
頁次:4
-
4
Nanotechnology is moving closer to our daily life. Researchers from the University of New South Wales,
Australia, are developing a coating that may make cleaning bathrooms 41 of a chore. The leading researchers,
Professors Rose Amal and Michael Brungs, are hoping to apply a tiny coating of titanium dioxide to keep the
toilets clean. Currently titanium dioxide is being used on outdoor items 42 self-cleaning windows.
To further keep the bathroom clean, nanoparticles kill the germs and remove organic compounds. 43 ,
the coating prevents liquid droplets from forming on the surface. It makes the liquid run off, 44 the toilet in
the process.
Exciting as this research project is, at this time it is currently only in development. The researchers 45 it
will take about a year before it can be seen on the market. It would certainly be great to have a clean bathroom
that would clean itself.
41 hardly never anymore less
42 by as like and
43 Instead Besides However Therefore
44 wash washed washing washes
45 estimate demand criticize summarize
The tower of Pisa is the bell tower of the cathedral of Pisa in Tuscany, Italy. It leans because when the
building was half completed, the soil under one half of the circular structure began to subside and the tower
tipped.
Work on the tower was begun in 1173, but was discontinued for a century after the subsidence. However,
in 1275, architects devised a plan to compensate for the tilt. Two stories, the third and the fifth, were built out of
line with the others and closer to the vertical in an effort to alte r the tower’s center of gravity.
But the leaning has continued to increase gradually throughout the centuries. Pumping to keep water away
from the surrounding ground and the injection of cement grout into the foundations and the surrounding subsoil
have been tried in recent years, but without success.
The tower, which is one of the most unusual in existence, is Romanesque in style and made of white marble.
It is cylindrical in shape and has eight stories.
The tilt is about 17 feet, or more than five degrees, from the perpendicular. The tower continues to increase
its tilt by about a quarter of an inch each year.
46 What is the main idea of this passage?
Of all the tourist attractions in Italy, the tower of Pisa is undoubtedly the most popular.
The collaboration of the Italian government and people has made the tower of Pisa become famous.
The best way to study Italian culture is to visit the tower of Pisa.
Despite the effort over the past years, the tower of Pisa still keeps tipping.
47 According to the passage, which of the following is true about the tower of Pisa?
It is made of cement. It looks like a cylinder in appearance.
It is a Gothic cathedral. It is a five-story building.
48 In four years’ time, how many inches will the tower of Pisa increase its tilt?
one two three four
49 Which of the following words is closest in meaning to “subside” in paragraph 1?
collapse float ascend sink
50 Which of the following statements is NOT true about the tower of Pisa?
Its construction began in the twelfth century.
It was not until 1275 that a plan was put forward to solve the problem of its tilt.
Substituting water for cement was adopted to prevent the tower from leaning further.
The third and fifth floors were built out of line with the others.