Complete the conversation with the useful language. Useful language Where can I sign up? Can I ask you a few things about (...)? What about ..? What do I need to bring? How long is ... ? Does the price include (...)? Gemma: Can I'... ask you a few things about the canyoning trip? The Blue Canyon one? Sure. What would you like to know? Guide: Gemma: Well, is it only for people who've already done it? No, you don't need any experience. We give training with qualified guides, and the Blue Canyon is fine for beginners. Guide: Gemma: Great! 2... need to bring? I haven't got a wetsuit or anything. That's OK. We provide a wetsuit, helmet, shoes and life jacket. Just bring your swimsuit and towel and some warm clothes for after. Guide: Gemma: OK, good! How... is the trip to Blue Canyon? Guide: It's all day, from nine until six. Gemma: I see. 4... food, then? Does the price Guide: Food is included in the price. We look after everything, so you just enjoy the adventure! Gemma: Wowl It sounds fantastic. Where ... sign up? Right herel​

The section of the river, to the confluence of flow-through lake Zaysan is called Black Irtysh. After passing through the waters of Irtysh river, Bukhtarma HPP using the prefix "black", change to "white".
It should be noted that in addition to the Bukhtarma on the Irtysh river are two hydroelectric power stations - Ust-Kamenogorsk and Shulbinsk. They are also located on the stretch of river below lake Zaisan.
Irtysh for 3 784 km navigable. Navigation on the river begins in April and lasts until November.
The Irtysh river is rich in fish. There are: sterlet, nelma, sturgeon, sturgeon, pike, perch, crucian carp. In the recently launched river carp, bream, perch and Baikal omul.
In Irtysh, there are about 17 tributaries, the largest of which are the rivers Tobol, Ishim and UBA.

Science is stimulus to progress

As far as I'm concern science is stimulus to progress. If there had not been science, people would have sat around the fire and slept on the bare ground.  Exploring of space, for example, has changed our life in many and somewhat unanticipated ways.

As we have seen many times in history, science explorations bring unanticipated results.  For instance, Columbus didn’t find a shorter route to Asia, but he discovered new continents!

They say, the science is a stimulus to progress; and  It’s  truth . So  it’s difficult to overestimate the role of science in our life. ...

But every medal has its reverse. The rapid scientific progress has aroused a number of problems that are a matter of our great concern.

These are ecological problems, the safety of nuclear power stations, the nuclear war threat.

In spite of all these things  science  progress cannot be and will not be stopped. Science will go on -- whether we are pessimistic, or are optimistic.

“Do not worry about things you cannot change.” said  Benjamin Franklin  I And  I completely agree with this view.