Đáp án và giải thích

Now listen and also questions fifteen to twenty.

Now I'm delighted to be able to introduce you all to the plans for our new complex. If you could please focus your attention on the maps in front of you, we will start to the main entrance to make our way towards the cafe, which is located behind the wall that we can see directly in front of us (15) Just next to the rear entrance, in this position the cafe is obscured from the entrances, which will keep this space warm and also create an intimate atmosphere.

Once visitors arrive at our station, they often need further transport in order to reach their homes. Therefore, we have introduced a taxi rank with its own waiting area. In order to reach these facilities, the visitors must simply leave the complex via the rear entrance and turn left (16) Visitors who have traveled to the station by car can leave it in the car park for a small fee, which is located just outside of the rear entrance to the right (17)

At present, our station does not have an internal seating area for passengers, so they're forced to wait for the trains outside on the platforms, which can be particularly unpleasant during the winter.

We have therefore decided to introduce a passenger waiting area inside the new complex to the right of the rear entrance with comfortable seating, where passengers can pass the time comfortably in the warmth (18)

As this space is a distance away from the station, we have also proposed a waiting area for wheelchair users that is closer (19)

As visitors enter through the main entrance, the space will be located behind the wall to the left. Finally we have also decided that it will be a great idea to introduce a new tourist office, (20) where visitors can get maps and information on a wonderful town. We want this new office to be easily accessible so visitors entering through the main entrance will find it directly to that right now.

I think that's all I have to tell you please feel free to ask any questions if you would like to know anything else.

The end of section two.

You now have half a minute to check your answers.

Đáp án và giải thích

Thông tin trong hội thoại:

Now listen and also questions twenty six to thirty.

You should give everyone tasks so that they have the opportunity to participate.

That's a really good idea actually. Would you help me decide who to assign each task to?

Now let's see. Well as Irene finds writing difficult, perhaps it would be useful for her to practice that by doing the bibliography.

I think the bibliography is a bit long for me. I think I'd be better suited to the methodology (26)

Yes, that makes sense. Bill, you've told us that Kim is a hard worker. So I think he should be tasked with the conclusions as there is quite a lot of effort involved (27)

Okay, sure. I knew that Kyle hasn't been feeling well, so he should take care of the abstract and the acknowledgement because there is very little work to be done for those tasks.

Jen, do you want to review some of the literature? It's a lot of work but I know that you really enjoy writing, so I'm confident that you'll do a good job.

Sure, sounds great (28)

Right, so that leaves the bibliography and the discussion to assign. I think that Linda will struggle with the amount of work involved in the referencing, so perhaps I should take care of that task and she can do the other one (29 & 30)

That's great guys. Thanks for your help. I'll tell the tutor when he arrives.

Đáp án và giải thích

You will hear a talk on research in nanotechnology. First you have some time to look at questions 31 to 40. Now listen carefully and answer questions 31 to 40.

Good morning everyone. Welcome to the second lecture in our series on modern technology. Today I'll be discussing the recent developments in nanotechnology, in addition to its applications in a number of environments such as domestic and medical. First of all I'd like to begin with a short explanation of what nanotechnology is. It is the manipulation of matter on an atomic molecular and super molecular scale. Because of its limitless applications and uses, the government has invested billions of dollars into the research and development of nanotechnology in order to explore its potential. It is only recently that we have been able to engage in the development of nanotechnology since the particles are so minuscule that a new type of microscope had to be invented to enable us to see them (31)

Many of you may not realize that we all use nanotechnology in our homes as a part of our daily lives. For example, the new dietary supplement uses nanotechnology in order to help our body to absorb iron from our diet (32) more efficiently which can help to prevent anemia. This technology also makes it easier and cheaper for factories to produce foods such as chocolates (33) as the nano molecules help the food to meet our recommended daily intake of certain vitamins and minerals. This may sound odd but in fact it just means that the food is healthier and cheaper and has increased flavor (34)

 Another application for nanotechnology is in the agriculture industry. In the past farmers have been using many artificial chemicals to fertilize the soil which is extremely bad for the planet as it contaminates the water that we drink. By using nanotechnology scientists have been able to develop a spray which increases the efficiency of fertilizers (35) that occur naturally in the soil. This means that a lot more food can now be produced per square hectare, making it cheaper and more efficient to grow without harming the planet.

One of the industries upon which nanotechnology has had the biggest impact is the production of pharmaceuticals. One of the most commonly occurring illnesses is food poisoning, as many foods have naturally occurring contaminants that can be harmful if eaten without being thoroughly cooked. Nanotechnology makes it possible for us to sterilize the food and make it safe to eat by killing these bacteria (36) A major success in the use of nanotechnology in the medical field is in the treatment of cancer. Researchers have found that they can attach medicine to nanoparticles which are then injected into the body and enable the therapeutic drugs to be absorbed into the veins (37) These drugs then travel throughout the blood system and target cancerous tumors.

Scientists have also discovered that certain metals contain nanoparticles that have antibacterial qualities with the ability to destroy over 650 types of bacteria. These metals are used for example on fridges to prevent the growth of bacteria. They can even be woven into materials to create clothing that is self-cleaning and has an attractive metallic appearance. The most popular of these materials contains silver which naturally has the strongest antibacterial qualities (38) These clothes have a special tag on them to show that they use nanotechnology. So keep a look out for them next time you go shopping. Another observation made by some researchers showed that certain types of nanoparticles called a spliffarines can destroy fat tissues and therefore stimulate fat loss without the need for dieting or exercise. They are currently developing a supplement that can be ingested in order to help dieters with their weight loss programs (39). It is predicted that these supplements will be on the market by 2020.

I would like to finish today's lecture with a final example of a domestic application for nanotechnology cosmetics. Nanoparticles are used in many makeups and body lotions but they have the greatest effect in sunscreen. Ultraviolet rays given off by the sun are a serious cause of skin cancer but the nanoparticles in sunscreen protect the skin against the sun by blocking the ultraviolet radiation from entering the body (40). This is why you must always wear suntan lotion on the beach. Now I'd be happy to answer any questions you may have.

That is the end of Section 4. You now have half a minute to check your answers. That is the end of the listening test. In the IELTS Test you will now have 10 minutes to transfer your answers to the answer sheet.