Unit 2 Lesson 5

1.-Complete the conversation with words from the box.
 
Host: Welcome to the show , Dr. Evans. Give us your  predictions for 100 years in the future.Dr. Evans I´m an optimist. I think there willbe many technological advances. We will  be able to cure disseases , like  cancer and AIDS. We´ll be able to  generate all our energy from nuclear power , so we´ll be able to cut most greenhouse gas emissions. We´ll all have electric cars. They will be able to drive themselves-they won´t need drivers and we´ll be able to relax and enjoy the journey
Host: What about in the field of space travel? Will be able to travel to other planets?
Dr. Evans : Yes , we´ll be able to go to Mars and perhaps we´ll be able to live there. In the future , anything is possible.

Unit 2 Lesson 4

7.-Find six verbs in the puzzle . Use them to complete the sentences in the correct tense.

a.Yesterday  I left  the house at 7:00 a.m. to go to school

b.She made fice calls on her cell phones last night.

c.Charles Darwin wrote On the Origin of species in the 19th  Century.

d.He hear the Jitterbug One Touch because the volume was on loud.

e. Last week we went to the zoo and saw an orangutan.

f. Dr. Martin Cooper began working for Motorola i the 1950s.

8.- Expand these notes to make a paragraph about the invention of the microwave. 

1946 / Percy LeBaron Spencer / invent / the microwave oven by accident.

He / be / engineer / the Raytheon Corporation.

One morning / be / his laboratory.

He / have / a candy bar / his pocket .

He / doing an experiment / with a magnetron / when / the chocolate / melt.

Then / try / another experiment with popcorn.

He / know / this / be / an important discovery.

Microwave ovens / be / soon very popular.
Percy LeBaron Spencer in 1946 accidentally invented the microwaveHe was an engineer at Raytheon Company. One morning he went to his laboratory and saw the candy bar he had in his pocket and melted, the experimented again and put in front of the magnetron returned to try but this time with popcorn.He knew that this was an important discovery and the microwave soon became very popular .

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Unit 1 Lesson 3

5.-Complete the biography with verbs in the box the correct tense

ALEXANDER GRAHAM BELL                       

Alexander Graham Bell was  born in  1847 in Scotland.He  studied at the universities of Edinburgh and  London. In 1871 , he moved to boston. There , he worked at a school for deaf people. In  1874 , he experimented with the basic idea for the telephione and then in 1876 , he transmitted the first complete sentence by telephone. He said “Watson , come here , I want you.” Bell won the volta Prize  (worth 50,00 French Francs ) for his invention. He died  in  1922 in Canada.

6.-Complete these questions.

a-Was Alexander Graham Bell born in the US? No ,he did not 
b-Where did he study ? At the universities of Edinburgh and London
c-Where did he move to in 1871 ? To Boston
d-What prize did he win? The volta prize.
e-Was his invention sucessful? Yes, it did. 

f-When did he die ? In 1922

Unit 2 Lesson 2

3.- Circle the best option

a) Manatees weigh / are weighing 400-500 kg.
b) They live / are living in war coastal waters
c) Manatees eat / are eating 50 kg of aquatic plants a day.
d) The manatee in the picture eats / is eating aquatic plants.
e) Their numbers fall / are falling dramatically.
f) At the moment , the US Fish and Wildlife Service tries / is trying to protect manatees.


4.-Read the clues.Solve the puzzle.What is 1 down ?

1) Is the government in your country doing enough to save endangered species?
2)Orangutans live in tropical forests
3)There are only about 2,500 tigers in the wild .The rest are in zoos.
4)She donates money to the WWF every year.
5)Tigers are nocturnal. They hunt at night.
6)They are dissappearing because we are destroying their habitat.
7)Their numbers are falling dramatically.
8)What is the orangutan´s favorite food? Do they eat bananas?
9)Polar bears hunt seals and fish.
Number 1 down is Extinction

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