- •Biometric devices
- •1. Read the following descriptions and match them with the corresponding vocabulary words above. (Malicious) (Sufficient) (Unique) (Uncertain) (Controversial) (Optical)
- •(Detection) (Recognition) (Storage) (Enforcement) (Tissue) (Reflection)
- •(To acquire) (To provide) (To utilize) (To establish) (To reject) (To enforce)
- •2. Complete the statements below.
- •3. Decide whether the following statements are true or false:
- •4. Complete the following passage using the appropriate words from the box below.
- •5. Read the text and then write the correct form of the word in capitals to complete the gaps. The first is done.
- •6. Match the following acquisition devices with each associated biometric technology.
- •7. Translate the following sentences into English
- •You are given the main issues and requirements of biometric technologies. Match them with the corresponding definitions.
- •Use the internet to find some information about the following biometric devices and complete the table below with appropriate information:
- •1. Complete the sentences with the correct form of the verbs.
- •2. Compete the sentences with can, could, may, might, will, should, ought to or must and the infinitive in the appropriate form.
- •3. Using the words given and other words, complete the second sentence so that it has a similar meaning to the first sentence. Do not change the word given.
2. Compete the sentences with can, could, may, might, will, should, ought to or must and the infinitive in the appropriate form.
Kerry’s rather late. She … (miss) the train.
Travellers’ cheques … (be exchanged) at most banks.
They’re not answering the phone so they … (be) out.
Don’t phone her now. It … (be) the middle of the night in Australia.
They … (not move) house yet. I saw them in town this morning.
I haven’t seen Molly this week. I think she … (visit) her parents but I’m not sure.
Her exam results are coming out soon. She worked very hard so she … (do) well.
That woman’s just fallen over. Let’s go and see her: she … (be) hurt.
I don’t know where she is. She … (not still play) tennis: it’s been dark for the last hour.
I sent the letter two days ago so he … (get) it by now, but you can never be sure.
3. Using the words given and other words, complete the second sentence so that it has a similar meaning to the first sentence. Do not change the word given.
There is a possibility that they won't visit us at the weekend.
Might They … at the weekend.
I'm sure it wasn't Tim who called you because I saw him outside.
Been It … Tim who called you because I saw him outside.
I think you'll find the house easily, as the directions are quite clear.
Ought The directions are quite clear, so you … the house easily.
I suppose Bruce has gone to the dentist since he had a terrible toothache.
Have Bruce … to the dentist since he had a terrible toothache.
It’s frustrating when you can’t communicate with foreigners.
Able It's frustrating when you … with foreigners.
Perhaps you didn't buy that watch from this shop.
Could You … that watch from another shop.
Gary couldn't remember where he had put his wallet.
Was Gary … where he had put his wallet.
Karen, I’d like you to help me with the washing-up.
Will Karen … with the washing-up?
Dr Chris Smith, a science radio ("Naked Scientists") broadcaster is talking to Andy Hopper, the Professor of Computer Technology and Mike Muller about computing power and programming methods.
a) Read the conversation and complete it with words from the table.
Underpinning perhaps sophisticated popular substantial software Challenge dynamically inefficient favourite tension abstractions |
Chris - Do we really need faster computing power, or are our programming methods just___________? What do we need to do to make sure we're programming our computers in the most efficient way possible?
Andy - There is a ___________ on the one hand by having more ___________ programming languages and therefore programs using them. It is easier to write some kinds of software. It is possibly easier to address large problems. But on the other hand, that introduces inefficiency, sometimes very ___________ inefficiency.
Listening
Dave Ansell is the science radio (“Naked Scientists”) science specialist is talking about where magnets obtain their energy.
a) Listen to his explanation and tick the features that he mentions.
b) Listen again and fill in the gaps.
Well, the answer, I’m afraid, is that no one truly knows. The most obvious idea is that they roughen our fingers to increase the friction. But we’ve done some test here in Manchester and we found that in fact the fingers actually behave rather like car tyres and because the fingerprints reduce our contact areas with a surface, they will actually reduce friction, just like the grooves in car tyres in a wet weather tyre and reduces the grip of the formula one car. Another possibility which I must say I favour, is that the ridging could actually help to prevent blister formation because the pattern will allow our skin to have much greater compliance and so that can help to reduce the sheer stresses around the edge of our contact zone. And the reason I believe is that if you ever do DIY tasks, what you tend to find is that the only bits where you get blisters is the bits, not on your fingerprints or wherever the big pattern of your palms, but in areas where there aren’t any prints. Well, of course there is no doubt that one of the roles the fingerprint must be to improve tactile discrimination because rubbing you finger over a surface, when it hits the rough projections they seem to help to detect vibrations and so, it is likely that one of the roles of finger prints is to improve touch discrimination. But that can’t be the main function because the soles of our feet, the palms of our hands also have finger prints. So, that must be just the secondary function.