Read the flowcharts given in the figure 1 and 2.

Read some information about creation of the flow charts in the Appendix 4-6 and create your own describing any experiment you made in the laboratory.

Create a list of rules related to the theme of the text given in the exercise 1. Share and compare the rules with your partners and think how they might be improved, choose the best ones.

Render the text given in the exercise 1.

Speaking

1. Read the information about Kurt Mislow. What prizes were given to him? Choose the lessons others can learn from this person and talk about what might have motivated him.

Kurt Mislow (1923- **)

Mislow is the premier stereochemical theorist and experimentalist of the second half of the 20th century, whose work has helped define modern stereochemistry. His textbook "Introduction to Stereochemistry" (1965) was built around the theme that the major principles of stereochemistry rest on considerations of symmetry and group theory. It introduced into chemistry the concept of topicity (enantio-, diastereo-, chiro-). Among his "firsts" are a general method for determining enantiomeric ratios by NMR spectroscopy, a general method for establishing the absolute configuration of optically active biaryls, the synthesis of a chemically achiral compound composed exclusively of asymmetric conformations, and the demonstration that conformational interconversion rates are affected by steric isotope effects. He designed novel types of stereoisomers among molecular propellers and molecular gears based on an analysis of ring-flipping and internal gearing motions. He published well over 300 papers, mainly in the area of stereochemistry.

Mislow was born in Berlin, Germany. He attended Tulane University (B.S. 1944) and obtained the Ph.D. degree with Linus Pauling at Cal Tech (1947). He then joined the New York University faculty, and in 1964 was appointed the first Hugh Stott Taylor Professor of Chemistry at Princeton University (1964). He became Professor Emeritus there in 1988. Among his many awards were Sloan and Guggenheim fellowships, the ACS James Flack Norris Award in Physical Organic Chemistry (1975), the William H. Nichols Medal (1987), and the Arthur C. Cope Scholar Award (1995). He was the first recipient of the Prelog Medal (1986) and the Chirality Medal (1993).

2. THE WORLD BEFORE AND AFTER: Think of and write down three ideas of what life was like before Kurt Mislow appeared and three changes that he has made to the world. Share and compare your ideas with partners.

3. THE SECRET LIFE OF…: Speculate on and develop a secret life for a character from the article. Share and compare secret lives with other students. Who thought of the funniest / craziest / weirdest… secret life?

4. INVITATIONS: talk about what might happen if you invited a person from the article …

· to your lab

· to the lecture on Stereochemistry delivered by your supervisor

· on a fishing trip

· to the supermarket, shopping for food

· to a secret place for a blind date

5. BORING: Think of five reasons why the character in the text might complain about his life and job. Discuss these things and compare them to your own everyday life.

Listening

Presentations: body

1. After you have greeted your guests, you will begin to go through the main body of your presentation. It's very useful to have some visual aids - some slides, pictures or graphs that help explain what you are saying. Sometimes they can also help to keep your audience interested in your presentation! Imagine you are giving a presentation and using some visual aids. What phrases might you use to draw your audience’s attention to these slides?

2. X Listen to two ways of giving presentations and see if you can hear some of the phrases above.

3. Read some advices on delivering effective presentations in the Appendix 7 and write your own presentation for the topic “M olecular symmetry ”.

Writing

Complaint letter

Look at Business English section 13 and write a complaint email and the answer to it. You can use the email in exercise as a model. Use your own ideas or the ideas below.

You were delivered: PerkinElmerLuminescenceSpectrometrModel LS-50B

Thescanningrangeis 200-900 nm. Gatedphotomultiplierwithmodified S5 responseforoperationtoabout 650 nm. Interchangeable red-sensitivephotomultiplieravailableforuseto 900 nm. WavelengthAccuracyisplusorminus 1.0nm.

You ordered: Beckman DU64 UV/VisSpectrophotometer

BeckmanModel DU64 UV/VisSpectrophotometer, Range: 700 to 250 nm, at 500 nm/mininabsorbancemode: 0.0 to 1.5 absorbanceunits.

Dear Ms. Martinez,
1 am writing in reference to the delivery of MP3 players, order # J396, which we received today.
Unfortunately, you sent us the wrong quantity. You sent us 20 K60 MP3 players, but we ordered 30. I have attached a copy of the order form for your reference.
I would be grateful if you would send ten more players as soon as possible.
Thank you for your assistance in this matter.
Sincerely,
David Heller
Dear Mr. Heller,
Thank you for your email concerning your order # J396.
We are sorry to hear that you received the wrong quantity. We have discovered that this was caused by a software problem. We will send you the remaining 10 MP3 players immediately, free of delivery charge.
Please accept our apologies for the inconvenience.
We look forward to doing business with you again in the future.
Sincerely,
Suzanne Martinez

UNIT 4

Дата добавления: 2015-10-28