Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

A rainbow is an optical display of color that usually appears in the sky when a beam of sunlight refracts through millions of raindrops. Each (1)________ color from the spectrum is then sent to your eyes. For this to happen, the angle between the ray of light, the raindrop and the human eye must be between 40 and 42 degrees.

   After studying rainbows in (2)________, 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 (3)________all the seven colors: red, orange, yellow, green, blue, indigo and violet. His assistant could also clearly tell the difference between indigo and violet.

   There are two types of rainbows. Primary rainbows are the most common and have the most distinctive colors, with red appearing on the outside of the arc and violet on the inside. Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (4)________ a rainbow, so the colors are in reverse order and not as bright as primary rainbows.

  There is a popular myth that if you reach the end of a rainbow, you will find a pot of gold waiting for you. 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 (5)________.

Điền vào số 1

21^st century teachers need to serve as a guide or mentor for their students, not as the all- knowing sage providing them with everything they need. Nowadays, with so much access (1)______ resources of all kinds, children invariably know more than teachers on different topics, step ahead of the technology. Teachers need to be empowered as facilitators for learning, so that they can empower their students in (2)______. This shift is great news for teachers. Instead of struggling to give kids all the information in areas (3)______ they know little about, teachers can support students as they make their own steps into different fields. It’s about preparing them to go beyond their seniors, ensuring they have the skills to do it, and assisting them along the way.

(4)______, teachers need to be forward-thinking, curious and flexible. They must be learners: learning new teaching methods, and learning alongside their students. Simply asking questions like “What will my students need dozens of years from now?” or “How can I help give them those skills?” can change teachers' (5)______, make them a leader, and bring about changes in the classroom, school and community.

Điền vào số 4

21^st century teachers need to serve as a guide or mentor for their students, not as the all- knowing sage providing them with everything they need. Nowadays, with so much access (1)______ resources of all kinds, children invariably know more than teachers on different topics, step ahead of the technology. Teachers need to be empowered as facilitators for learning, so that they can empower their students in (2)______. This shift is great news for teachers. Instead of struggling to give kids all the information in areas (3)______ they know little about, teachers can support students as they make their own steps into different fields. It’s about preparing them to go beyond their seniors, ensuring they have the skills to do it, and assisting them along the way.

(4)______, teachers need to be forward-thinking, curious and flexible. They must be learners: learning new teaching methods, and learning alongside their students. Simply asking questions like “What will my students need dozens of years from now?” or “How can I help give them those skills?” can change teachers' (5)______, make them a leader, and bring about changes in the classroom, school and community.

Điền vào số 3

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

        A rainbow is an optical display of color that usually appears in the sky when a beam of sunlight refracts through millions of raindrops. Each (1)________ color from the spectrum is then sent to your eyes. For this to happen, the angle between the ray of light, the raindrop and the human eye must be between 40 and 42 degrees.

   After studying rainbows in (2)________, 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 (3)________all the seven colors: red, orange, yellow, green, blue, indigo and violet. His assistant could also clearly tell the difference between indigo and violet.

   There are two types of rainbows. Primary rainbows are the most common and have the most distinctive colors, with red appearing on the outside of the arc and violet on the inside. Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (4)________ a rainbow, so the colors are in reverse order and not as bright as primary rainbows.

  There is a popular myth that if you reach the end of a rainbow, you will find a pot of gold waiting for you. 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 (5)________.

Điền vào số 2

The invention of the mobile phone has undoubtedly revolutionized the way people communicate and influenced every aspect of our lives. The issue is whether this technological innovation has done more harm than good.

        In order to (1)______ the question, we must first turn to the type of consumer. Presumably, most parents buy mobile phones for their teenagers to track their whereabouts and ensure their safety. We can also assume that most teenagers want mobile phones to avoid missing out (2)______ social contact. In this context, the advantages are clear. However, we cannot deny the fact that text messages have been used by bullies to intimidate fellow students. There is also (3)______ evidence that texting has affected literacy skills.

        The ubiquitous use of the mobile phone has, (4)______ question, affected adult consumers, too. What employee, on the way home from work, would be reluctant to answer a call from their boss? Apparently, only 18% of us, according to a recent survey, are willing to switch off our mobile phones once we’ve left the office.

        Admittedly, mobile phones can be intrusive but there are obvious benefits to possessing one. Personally speaking, they are invaluable when it comes to making social or business arrangements at short (5)______. According to a recent survey, they also provide their owners with a sense of security in emergency situations.

        In conclusion, mobile phones do have their drawbacks, but these are outweighed by the benefits. I would argue that it is not the tool that chooses its purpose, but the user.

Điền vào số 3

British families started going on holiday to the seaside around the middle of the 19th century. The invention of the railways made this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (1)__________of illnesses, and doctors recommended bathing in the sea and drinking sea water. Also to increase their knowledge, families attended concerts and read books from libraries.

At that time, ordinary working people had very little time (2)__________. However, in 1871, the government introduce four “Bank Holidays” – national holiday days. This allowed people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first they went on day-trips, taking(3)__________ of special cheap tickets on the railways. By the 1880s, rising incomes meant many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (4)__________ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (5)__________ offer and holidaymakers went to have fun. Today, the English seaside remained popular, with more than 18 million holidays taken there each year.

Điền vào số 4

21^st century teachers need to serve as a guide or mentor for their students, not as the all- knowing sage providing them with everything they need. Nowadays, with so much access (1)______ resources of all kinds, children invariably know more than teachers on different topics, step ahead of the technology. Teachers need to be empowered as facilitators for learning, so that they can empower their students in (2)______. This shift is great news for teachers. Instead of struggling to give kids all the information in areas (3)______ they know little about, teachers can support students as they make their own steps into different fields. It’s about preparing them to go beyond their seniors, ensuring they have the skills to do it, and assisting them along the way.

(4)______, teachers need to be forward-thinking, curious and flexible. They must be learners: learning new teaching methods, and learning alongside their students. Simply asking questions like “What will my students need dozens of years from now?” or “How can I help give them those skills?” can change teachers' (5)______, make them a leader, and bring about changes in the classroom, school and community.

Điền vào số 5