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1. Find predicates in all the sentences of the text and define their tenses. Try to explain their use.

2. Find all -ed verb forms in the text and explain their functions.

3. Write down from the text all the Adjectives with different suffixes. Translate them into your native language.

10. Improved Redox Flow Batteries For Electric Cars

redox (reduction-oxidation)

окислювально-відновний

a storage

сховище; акумулювання

increasingly

все більше

to recharge

перезаряджати

to envisage

передбачати

a gas station

бензозаправка

to overcome

подолати

to pump out

викачувати

a hurdle

перепона

a solar plant

сонячна батарея

A new type of redox flow battery presents a huge advantage for electric cars. Electric mobility is becoming increasingly important. The German government’s ambitious plan envisages one million electric cars being sold in Germany by the year 2020. Until then, however, researchers still have to overcome some hurdles, such as the question of energy storage. Lithium-ion batteries offer a possible solution, but it takes hours to charge them – time that an automobile driver doesn’t have when on the road. Researchers from the Fraunhofer Institute for Chemical Technology in Pfinztal near Karlsruhe see an alternative in redox flow batteries. These batteries are based on fluid electrolytes. They can therefore be recharged at the gas station in a few minutes – the discharged electrolyte is simply pumped out and replaced with recharged fluid. The pumped-off electrolyte can be recharged at the gas station, e.g. using a wind turbine or solar plant.

Speech patterns

It takes

Займає; потрібно

It takes me an hour and a half to get to the University.

Дорога до університету займає у мене півтори години.

How much wool does it take to make a sweater?

Скільки потрібно вовни, щоб зробити светра?

1. Say whether these statements are true or false.

1. The German government predicts that one thousand electric cars will be sold in Germany in the year 2020.

2. Lithium-ion batteries can be recharged very quickly.

3. Redox flow batteries will be charged at the gas station in a few minutes.

2. Answer the questions.

1. What type of batteries are they going to use in electric cars in Germany? 2. What is the main problem of using electric cars now? 3. What batteries are used for electric cars now? Is there any problem of using them? 4. What forms the basis for flow batteries? 5. What is done with the contents of these batteries at a gas station? 6. What kinds of “green” energy sources are used to recharge the electrolyte from the batteries?

3. Find the words in the text that correspond to the following descriptions:

1) extremely large in size, amount, or scope; 2) an obstacle to be overcome; 3) to substitute a person or thing which has ceased to fulfill its function for another one; 4) a possibility of choice, especially between two things; 5) the executive policy-making body of a political unit or a state; 6) having a strong desire for success or achievement; 7) a specific answer to or a way of answering a problem.

4. Give synonyms to the following words from the text:

a type, important, to envisage, a researcher, a hurdle, energy, fluid, for example.

5. Render the meaning of the text in two or three sentences using the words: to envisage, storage, a hurdle, to recharge, to replace, a gas station.

Grammar Practice

1. Put all possible questions to the following sentences.

1. Flow batteries can be recharged at the gas station in a few minutes.

2. The German government predicts that in the year 2020 a million electric cars will be sold in Germany.

2. Find all the occurrences of Modal Verbs in the text. Explain their functions.

3. Find all Prepositions in the text. Compose a sentence of your own using each preposition with the same meaning.

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