user-avatar
tntd24032k1
2 năm trước
These days everybody is aware ________ the danger of smoking.
A.up   
B.of  
C.on
D.with
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

IV. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
The first thing to do when you have a trip abroad is to check that your passport is valid. Holders of out-of-date passports are not allowed to travel overseas. Then you can prepare for your trip. If you don't know the language, you can have all kinds of problems communicating with local people. Buying a pocket dictionary can make a difference. You'll be able to order food, buy things in shops and ask for directions. It's worth getting one. Also there's nothing worse than arriving at your destination to find there are no hotels available. The obvious way to avoid this is to book in advance. This can save you money too. Another frustrating thing that can happen is to go somewhere and not know about important sightseeing places. Get a guide book before you leave and make the most of your trip. It's a must.
Then, when you are ready to pack your clothes, make sure they are the right kind. It's no good packing sweaters and coats for a hot country or T-shirts and shorts for a cold one. Check the local climate before you leave.
Also, be careful how much you pack in your bags. It's easy to take too many clothes and then not have enough space for souvenirs. But make sure you pack essentials. What about money? Well, it's a good idea to take some local currency with you but not too much. There are conveniently located cash machines (ATMs) in most big cities, and it's usually cheaper to use them than change your cash in banks. Then you'll have more money to spend. When you are at your destination, other travellers often have great information they are happy to share. Find out what they have to say. It could enhance your travelling experience.
        (Adapted from Pearson Test of English General Skills)
The word “essentials” in paragraph 4 mostly means ________ .
A.everything              
B.valuables
C.necessities                           
D.food

Read the following passage  and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each for  the question  from 46 to 55.
   Tides are the periodic rise and fall of the Earth’s waters that are caused the Moon’s and Sun’s forces of gravity acting on the Earth .It is important to distinguish natural tidal phenomena  from huge tsunamis , with the latter being caused  by earthquakes and undersea  volcanic eruptions.
    The Moon is a main factor controlling ordinary tides. At the location on the Earth closest to the Moon , it exerts a powerful gravitational pull on the water. The resulting rise in the water produces higher tides . The water on the side of the Earth farthest away from the Moon also gets pulled by this lunar gravity , but not as strongly. The Earth itself has its own gravitational force that is constantly pulling waters downward ,  which is why the oceans do not simply bulge out toward the Moon. Ordinary tides usually feature high  and low waters alternating in relation to the Earth’s rotation. Most shores around  the world have high waters and two low waters for each day, which last about 24 hours and 50 minutes. The difference in height between the high water and low water is called the range of tide, and it can be quite dramatic in narrower bays .Canada’s bays of Fundy , for example , commonly experiences the world’s most extreme tidal ranges , with daily differences of the 16 metres.
     Two other types of tides are influenced by the Sun , which is much farther away from the Earth and exerts less than half of the Moon’s gravitational force . When the Sun, the Moon and the Earth are directly in line , the solar and lunar gravitational forces add up to produce higher spring tides. The range of spring tides is intensified , with higher water marks and lower low water marks. However , when the Moon is in the first or third quarter , it is at a 90-degree angle with the Sun in relation to the Earth .The opposing solar and lunar forces partially cancel each other out , and the result is a lower tide. This is called a neap tide , which comes twice a month and has lower high water marks and higher low water marks. The range of neap tides is minimum.
      Some tides do not occur over water at all. The solid body of the Earth has slight elasticity, so lunar and solar gravity cause it to stretch very subtly. These changes in the Earth’s shape, although imperceptible to humans, are known as Earth tides. Another tidal phenomenon, atmospheric tides, is caused by the Sun’s heating of the Earth’s atmosphere. Like ordinary tides, they usually occur  over 12-hour periods. 
The word imperceptible in the last paragraph could best be replace by
A.not noticeable
B.difficult to explain
C.not generally
D.not able to be said

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team