Humans have four blood types（血型）. They are blood type A, B, O and AB.

The table below shows all kinds of possible blood types of parents and their children. Children’s blood types are shown in grey squares.

MOTHER FATHER	A	B	O	AB
A	A, O	A, B, O, AB	A, O	A, B, AB
B	A, B, O, AB	B, O	B, O	A, B, AB
O	A, O	B, O	O	A, B
AB	A, B, AB	A, B, AB	A, B	A, B, AB

(   ) 56. If both parents are blood type O, then their children must be ________.

A. blood type A                                  B. blood type B            

C. blood type AB                         D. blood type O

(   ) 57. If a father is blood type A and a mother is blood type B, then their children’s blood types may be __________.

A. any blood type                            B. blood type A and B

C. blood type AB and O                   D. blood type A, B and AB

(   ) 58. If both parents are blood type AB, then their children can NOT be ____.

A. blood type A                               B. blood type AB

C. blood type O                              D. blood type B

(   )59. If both children of the same parents are blood type A, B, O and AB, then their parents should be __________.

A. blood type A and B               B. blood type A and AB

C. blood type B and AB                D. blood type AB and AB

(   ) 60. If one parent is blood type AB, and his or her nine children only get blood type A and B, then the other parent’ s blood type is likely to be（可能）__________.

A. blood type A          B. blood type B           C. blood type AB          D. blood type O

    

閱讀理解

	A	B	O	AB
A	A,O	A,B,O,AB	A,O	A,B,AB
B	A,B,O,AB	B,O	B,O	A,B,AB
O	A,O	B,O	O	A,B
AB	A,B,AB	A,B,AB	A,B	A,B,AB

 
【小題1】If both parents are blood type O, then their children must be _________.

A．blood type A

B．blood type B

C．blood type AB

D．blood type O

【小題2】 If a father is blood type A and a mother is blood type B, then children’s blood types may be ________.

A．a(chǎn)ny blood type	B．blood type A and B
C．blood type AB and O	D．blood type A,B and AB

【小題3】If both parents are blood type AB, then their children can NOT be ________.

A．blood type A

B．blood type AB

C．blood type O

D．blood type B

【小題4】 If four children of the same parents are blood type A , B, O and AB, then their parents should be ________.

A．blood type A and B	B．blood type A and AB
C．blood type B and AB	D．blood type AB and AB

【小題5】 If one parent is blood type AB, and his or her nine children only get blood type A and B, then the other parent’s blood type is likely to be __________.

A．blood type A

B．blood type B

C．blood type AB

D．blood type O

閱讀理解

	A	B	O	AB
A	A,O	A,B,O,AB	A,O	A,B,AB
B	A,B,O,AB	B,O	B,O	A,B,AB
O	A,O	B,O	O	A,B
AB	A,B,AB	A,B,AB	A,B	A,B,AB

 

1.If both parents are blood type O, then their children must be _________.

A. blood type A    B. blood type B    C. blood type AB    D. blood type O

2. If a father is blood type A and a mother is blood type B, then children’s blood types may be ________.

A. any blood type           B. blood type A and B

C. blood type AB and O      D. blood type A,B and AB

3.If both parents are blood type AB, then their children can NOT be ________.

A. blood type A    B. blood type AB   C. blood type O    D. blood type B

4. If four children of the same parents are blood type A , B, O and AB, then their parents should be ________.

A. blood type A and B      B. blood type A and AB

C. blood type B and AB     D. blood type AB and AB

5. If one parent is blood type AB, and his or her nine children only get blood type A and B, then the other parent’s blood type is likely to be __________.

A. blood type A     B. blood type B   C. blood type AB    D. blood type O