Express surprise

Complete the sentences using Future Simple Tense.

Translate and memorize the following words.

UNIT III TOOLS AND MEASUREMENTS IN CHEMISTRY

Grammar: Future Simple Tense, Modals

the use of one

Text: Tools and Measurements in Chemistry

pour	accurate	balance
detect	thorough	cylinder
check	rapid	relationship
weigh	graduated	grade
determine	sensitive	value
accompany	frequent	volume
serve	pipette	quality
employ	burette	quantity
correspond	prepare	lip

2. Define the parts of speech and translate them without a dictionary:

determine – determination; sense – sensitive – sensitively; volume – volumemetric; thorough – thoroughly; rapid – rapidly; experiment – to experiment – experimental; quantity – quantitative – quantitatively; quality – qualification – to qualify – qualification - qualitative – quantitatively; measure – measuring; grade – graduate – graduated.

3. Make sure whether you read these words correctly:

mass, result, calorimeters, barometer, thermometer, polarimeters, refractometers, viscometer, hydrometer, microscope.

Study and remember the following chart:

I shall work in the lab tomorrow.	We shall not work in the lab tomorrow.	Shallwe work in the lab tomorrow?
He will finish his work in some minutes.	He will not finish his work in time.	Will he finish his work in an hour?

Use the Future Simple Tense if an action will takes place:

- soon, tomorrow, the day after tomorrow, tonight, this evening, tomorrow morning, etc.

- next week (month, year, etc.)

- in a month, in a year(in two, threeetc. years)

- or won’t take place at all.

Model: She is in the laboratory now. (to come soon, here)

She is in the laboratory now, but she will come soon here.

1. They go to school this year. (to finish, next year) 2. She is still in America. (to leave for Russia, in a week) 3. Now they are in the lab. (change this lab, soon) 4. We are doing our experiment. (to complete, in an hour) 5. This year we study inorganic chemistry. (organic chemistry, in a year) 6. This week we pass our term-tests. (the first examination, next week)

Model: -We ‘ll see each other tomorrow.

- Shall we really see each other tomorrow?

1. Nelly will come in the evening.

2. He’ll come back to you in some days.

3. There will be a lot of people at the lecture today.

4. In a week our group will take an exam.

5. I’ll weigh all the samples.

6. They will complete the series of tests tonight.

6. Put the questions to the underlined words:

1. First we’ll prepare everything we need for our experiment.

2. We’ll put all the reagents and samples on the bench.

3. Your analyst will give you tubes, pipes, funnels.

4. You will also use burners and scales.

5. You’ll need your notebooks to write down the data and the results of our practical work.

6. We shall be able to experiment with salts and bases.

7. Mind the note and translate the sentences into Russian:

Note: one -один (числительное)

- подлежащее (в неоп­ределенно-личном предложении)

one, ones - слова – заместители существитель­ного

no one - никто	one may - можно
anyone - любой, кто-нибудь	one must- нужно

1. They study organic processes and inorganic ones. 2. Anyone can take part in this work. 3. This method is sim­pler than that one. 4. No one has ever observed this phenome­non. 5. One must know all the properties of this substance. 6. Sodium is the only one of the alkali metals which is used industrially in large quantities. 7. No one could state the definite properties of this substance. 8. One may expect that this substance dissolves easily in water. 9. Only one out of 100 million atoms of radium decomposes per second. 10. At one time the chemists took the weight of the hydrogen atom as the unit. 11. Hydrogen consists of particles, each one is made up of two hydrogen atoms.

Study the following chart, mind the meaning of modal verb “should”.

Active Voice	Passive Voice
You should usegraduated cylinder now.	Graduated cylinder should be used now.

Use “should” if you want to advise smb. do smth,.

8. Translate into Russian:

1. We should stay and complete our experiment. 2. You should examine all the properties of this substance. 3. I should liketo visit a new lab. 4. You should pour only a drop of this substance. 5. We should measure it again. 6. We’d like to know everything about this matter. 7. They should weigh the sample before the experiment. 8. At first he should prepare the solution.

9. What would you advise? Complete the phrases. Practise should better or should.

Model: - I’m going to use this balance (electronic balance).

- Well, you should better/you’d better use an electronic balance/one.

1. We are going to add concentrated acid. (diluted acid)

2. May I take these samples? (those ones)

3. He uses pure water for the dilution. (distilled water)

4. Don’t mix these solutions. (take another one)

5. I’m going to weigh both samples after the experiment (before)

6. Let’s take a beaker. (a graduated cylinder)

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