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1) Complete the sentences with the words from the box.
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1. devices such as a laptop or a digital camera can be charged by a solar charger.
2.A washing-machine or vacuum cleaner can help you time and energy while doing housework.
3.Generally, new are created to make people's lives easier and more comfortable.
4.Any electronic devices may have both and drawbacks. A laptop, for example, is because it's portable, but not all people can afford it because of its high cost.
ĐÁP ÁN
| 1. mobile | 2. save | 3. inventions | 4. benefits; convenient | 5. modern |
3) Write sentences about the uses of the following inventions, using the V-ing or to-infinitive forms of verbs. You can use the cues or your own ideas.
1.Washing machine (wash / clothes)
...............................................................................
2.Earbuds (listen to / music / disturb / other people)
...............................................................................
3.Pencil case (hold / pens / pencils)
...............................................................................
4.Correction pen (cover / writing mistakes)
...............................................................................
5.Calculator (calculate / with numbers)
...............................................................................
6. A pair of compasses ( draw/ circle)
...............................................................................
ĐÁP ÁN
1. We can use a washing machine to wash clothes.
2. Earbuds are used to listen to music without disturbing other people.
3. You can use a pencil case to hold pens and pencils.
4. A correction pen is used for covering your writing mistakes.
5. A calculator is used to calculate with numbers.
6. You can use a pair of compasses to draw circles.
4) Join the beginnings and ends to make complete sentences
| Beginnings | Ends |
|---|---|
|
1. Kite flying has 2. Those scientists have 3.The Internet has 4. Quite a lot of victims have 5. Nobody is in the room. They all have |
A. researched for years into ways of curing cancer patients. B. rushed to the stadium to see the football match. C. lost parts of their bodies during the war. D.given brilliant ideas for the invention of aircraft. E. changed the way we shop, communicate, and learn |
ĐÁP ÁN
| 1. d | 2. a | 3. e | 4. c | 5. b |
5) Complete the second sentence so that it follows on from the first. Use the present perfect.
1.I've lost my mobile phone. Someone ................ my mobile phone.
2.I'm still working on my assignments. I ................ my assignments yet.
3.A lot of trees are uprooted after the storm. The storm................ a lot of trees.
4.People now have faster ways of communication thanks to these new inventions. These new inventions ................ our ways of communication faster.
5.I can't open these files on my computer. A computer virus................ these files.
6.The streets are flooded. It................ all night.
7.I only slept a few hours last night. I ................ enough sleep and now I'm very tired.
8.The Internet was first created in the 1960s. Since then, it ................ people's lives in different ways.
ĐÁP ÁN
| 1. has stolen / taken | 2. haven't finished |
| 3. has uprooted | 4. have made |
| 5. has destroyed | 6. has rained |
| 7. haven't had | 8. has changed |
