TECE04-XX03-K06 - Einsendeaufgabe SGD NOTE 1

1. Assignment:
Please read the text and answer the questions that follow it:
A ring stand is probably the handiest single support you can own. It can be used to hold a funnel or to support a flask, beaker or crucible over a flame.
A tripod may be substituted for a ring stand. This three-legged iron stand may have a single ring for a top or it may have several concentric rings which can be removed or added to suit the size of the apparatus to be heated.
If you have a supply of gas in your lab, a Bunsen or a Fisher burner will solve practically all your heat problems. If you have not, you will have to improvise. A small alcohol lamp will generally do for heating test-tubes. A larger alcohol or gasoline burner or an electric hot plate will heat flasks and beakers. A propane soldering torch, provided with a flame spreader, will give you plenty of heat.
The Bunsen burner may be bought in types for either natural or artificial gas. A wing-top attachment will spread the flame for the working glass. The hottest part of a Bunsen flame is a point just inside the tip of its outer cone. To light a Bunsen burner, close the air supply at the base of the burner, turn on the gas at the source and bring a lighted match just above the mouth of the burner from one side. Then gradually open the air supply until the original luminous yellow flame has turned non-luminous and blue.
The Fisher burner is an improved modern form of air-gas burner which costs more than the Bunsen type but which gives a broader flame and considerably more heat.
a) What are ring stands and tripods used for?
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b) Why are some tripods fitted with concentric rings?
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c) What kinds of apparatus are used for heating and what can be done if they are not available?
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d) Which three differences between a Bunsen and a Fisher burner are mentioned in the text?
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e) What are test-tubes and beakers used for?
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2. Assignment:
Translate the following sentences into English (using the gerund).
a) Haben Sie etwas dagegen, das Experiment noch einmal durchzuführen?
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b) Er äußert seine Meinung nicht gern.
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c) Ich schlage vor, ihn zu fragen.
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d) Dieses Handbuch zu lesen, ist sehr nützlich.
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e) Nicht auf die Experten zu hören, kann sehr teuer werden.
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f) Vermeiden Sie es, die Proben zu überhitzen.
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g) Ich bin daran interessiert, die Ergebnisse so schnell wie möglich zu veröffentlichen (publish).
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3. Assignment:
Complete the sentences with the expressions in brackets in their correct forms.
Example: I’m [. . .] (think, move) to another country.
→ I’m thinking of moving to another country.
a) She is [. . .] (interest, find) a new job.
b) I [. . .] (propose, check) the temperature first.
c) We [. . .] (look forward, cooperate) with your team again.
d) Yesterday the company [. . .] (decide, reduce) their workforce in Hamburg.
e) He was [. . .] (tired, work) in the lab, so he found himself a new job.
f) I [. . .] (enjoy, experiment) but I [. . .] (dislike, do) routine work.
4. Assignment:
Answer the following questions about using computers:
When did you first use a computer? What kind of computer was it?
How do you use a computer at work and in your free time nowadays?
Do you like working with computers? Why? Why not? (Write about 150 words.)