TRƯỜNG THCS PHAN BỘI CHÂU
Họ và tên:...........................................
Lớp: 8A....
KIỂM TRA GIƯA HKII
NĂM HOC 2022-2023
MÔN: TIN HOC 8
THỜI GIAN: 45 PHÚT
Điểm Nhân xe,t
ĐỀ 1
I. Trắc nghiệm: (5 điểm)
Hay chọn đáp án đu,ng nhâ,t va@ ghi lai va@o phâ@n ba@i la@m (môi đap an đung đươc 0,5 điêm).
Câu 1: KiêEu dư liêu na@o sau đây co, pham vi gia, tri tư@ 0 đê,n 255?
A. Byte B. Real C. Integer D. Longint
Câu 2: Câu lênh sau thưc hiên bao nhiêu vo@ng lăp?
For k:=10 to 20 do write(‘Lop 8a’);
A. 10 B. 20 C. 11 D. vô sô"
Câu 3: Để chay chương trình trong Free Pascal ta nhấn tổ hợp phím:
A. Alt + F9 B. Ctr + O C. F2 D. Ctrl + F9
Câu 4: Câu lênh sau thưc hiên bao nhiêu vo@ng lăp?
X:=0; while X<=7 do X:=X+2;
A. 3 B. 4 C. 5 D. vô sô"
Câu 5: Hoat đông na@o sau đây lăp vơ,i sô, lâ@n chưa biê,t trươ,c?
A. Buô+i tô"i em ho.c ba1i cho đê"n khi thuô.c rô1i mơ"i đi ngu+.
B. Mô.t nga1y em rư+a che"n giu"p me. 2 lâ1n.
C. Mô.t nga1y em đa"nh răng 3 lâ1n.
D. Trươ1ng em tô+ chư"c cha1o cơ1 mô.t tuâ1n mô.t lâ1n.
Câu 6: Biê,n S đươc khai ba,o kiêEu sô, thưc. Ca,ch xuâ,t kê,t quaE na@o sau đây giu,p em kiêEm tra
đươc kê,t quaE sau khi chay chương tri@nh?
A. write(S:2); B. write(S:5:2); C. writeln(S); D. write(S);
Câu 7: Trong Pascal, câu lệnh lặp vơ,i sô, lâ@n biê,t trươ,c có dạng:
A. for <biến đếm> := <giá trị đầu> do <câu lệnh>;
B. for <biến đếm> = <giá trị đầu> do <giá trị cuối> to <câu lệnh>;
C. for <biến đếm> := <giá trị đầu> to <giá trị cuối> do <câu lệnh>;
D. for <biến đếm> := <giá trị cuô"i> to <giá trị đâ1u> do <câu lệnh>;
Câu 8: Câu lệnh Pascal nào sau đây là hợp lệ?
A. For i:= ’1’ to ‘10’ do writeln(‘A’); B. For i:= 2.5 to 10.5 do writeln(‘A’);
C. For i := 20 to 10 do writeln(‘A’); D. For i:= 1 to 10 do writeln(‘A’);
Câu 9: Chon ca,ch đêE lưu chương tri@nh trong Pascal:
A. Nhâ"n F2 B. Nhâ"n F3 C. Va1o File Save D. Ca+ A va1 C
Câu 10: Điều kiện câ@n kiêEm tra trong câu lệnh sau la@ gi@?
While (i<=n) and (S<=1000) do Begin S:=S+2*i; i:=i+1; end;
A. i<=n B. (i<=n) va1 (S<=1000) C. S<=1000 D. S:=S+2*i
II. Tự luận: (5 điểm)
Câu 11: (1,5 điểm)
HaPy nêu câ"u tru"c, hoa.t đô.ng cu+a câu lê.nh lă.p vơ"i sô" lâ1n chưa biê"t trươ"c While .. do
Câu 12: (1,5 điểm)
Viê"t chương tri1nh nhâ.p va1o mô.t sô" tư. nhiên N (N < 200). Ti"nh ti"ch ca"c sô" tư. nhiên tư1 1 đê"n n
va1 xuâ"t kê"t qủa ra ma1n hi1nh.
Câu 13: (2 điểm)
Cho đoan chương trình sau:
S:=1; n:=1;
While S<=34 do
Begin
n:=n+3;
S:=S+n;
End;
Đoa.n chương tri1nh trên thư.c hiê.n bao nhiêu vo1ng lă.p?
Kê"t qu+a gia" tri. biê"n S, n la1 bao nhiêu?
BA@I LA@M
I. TRĂ,C NGHIÊM: (5,0 điểm)
Câu 12345678910
Đa,p a,n
II. TƯ LUÂN: (5,0 điểm)
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