Task 1 choose true of false
1.blood type is a way to describe the type of character.
2.Type O has A and B antigens.
3.The blood type of the recipient must be carefully matched to the blood type of the donor.
4.If a person has the Rh antigene,then the person is positive.
5.People with type A and B are called universal donors.
6.People with type AB blood are called universal recipients.

Task 2.
Read the text again and match the
terms with the definitions
7. antigen
8. blood transfusion
9. Rhesus factor
10. universal donors
11. universal recipients
a) Aspect type that tells whether or not a
person has the Rh antigen on the surface oftheir red
blood cells.
b ) People with type O blood; they do not have any
antigens on their red blood cells and, therefore, can
donate blood to people with any blood type.
c) Process ofputting blood or blood products from
one person into the circulatory system ofanother
person.
d ) Anything that can trigger an immune response.
e ) People with type AB positive blood; they do not
make anyanti-A or anti-B antibodies and, therefore,
can receive any blood type.

7. antigen
8.blood transfusion
9.Rhesus factor
10.universal donors
11.universal recipients

Writing. Task 3

Write about one of the
discoveries in the field of Biology.
The theme: "The most important discovery in
the field of Biology"
You should
1. Write 8-10 sentences according to the topic
2. Make an argument and give reasons;
3. Link ideas logically and clearly, using basic
conjunctions and linking words;
4. Use appropriate topical vocabulary.
You can start with:
There are lots of important discoveries in the field
of Biology. For example,
I think the most important event is Karl
Landsteiner's discovery of blood types because it
helps to save people's lives.

​

залина102    2   08.12.2020 23:21    0