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

    

Mr. Klein told the class that a new student, Inez, would join them soon. He  46  that Inez was deaf. She “talked” with others by using sign language. Mr. Klein knew sign language, and he decided to teach  47  students so that they could also “talk” with Inez.

First, they learned to sign the letters. Some letters were hard to remember. Other letters, such as C, were easier because the shape of the hand was the same as the shape of the letter.

The  48  thing they learned was finger spelling. They signed one letter after  49  to spell a word. They started with two-letter words such as “at” and “on”. Then they spelled  50  words.

Finally, Mr. Klein showed that  51  one sign could be used for a whole word. To make the sign for the word “fine”, a person spreads(张开) out the fingers on one hand, touches the thumb(拇指) to the chest(胸部), and moves the hand away from the chest. Signing is not just done with the hands, expressions on the face are also  52 . The students learned to sign a question mark by using expressions  53  the face.

When Inez entered the classroom, she looked  54 . But the students signed, “Good morning, Inez.” She gave the class a big smile and signed back, “What a wonderful  55 !”

(    ) 46. A hoped          B. said            C. guessed               D. thought

(    ) 47. A. his           B. my            C. her                 D. our

(    ) 48. A. first          B. only           C. last                D. next

(    ) 49. A. other          B. another         C. the other            D. others

(    ) 50. A. newer       B. easier                  C. longer              D. nicer

(    ) 51. A. never         B. perhaps         C. still                D. just

(    ) 52. A. important      B. different        C. difficult             D. strange

(    ) 53. A. about         B. to                    C. on                         D. in

(    ) 54. A. serious        B. surprised       C. frightened           D. nervous

(    ) 55. A. welcome     B. congratulation  C. progress                    D. success

    

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