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16 tháng 4

quảng đường ab dài 120 km

tick đúng đi


S
16 tháng 4

thời gian lúc về là:

4-1=3 (giờ)

tỉ số thời gian lúc đi và lúc về là

4:3

trên cùng 1 quãng đường, vận tốc tỉ lệ nghịch với thời gian nên

tỉ số vận tốc lúc đi và lúc về là:

3:4

hiệu số phần bằng nhau là:

4-3=1(phần)

vận tốc lúc đi là:

(10 : 1) x 3 = 30 (km/h)

quãng đường AB là:

30 x 4 = 120 (km)

II. Read the passage and tick T(True) or F (False)Do you own a PDA - Personal Digital Assistant? Have you got a personal computer? Have you ever used a laptop? The answer can be "Yes: But do you know that the first computer was made about 70 years ago? It was large enough to take up a living room. It was named ENIAC- Electronic Numerical Intergrator and Calculator.Thanks to the development of technology, computers are becoming smaller and smaller.The first personal computer was introduced in...
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II. Read the passage and tick T(True) or F (False)


Do you own a PDA - Personal Digital Assistant? Have you got a personal computer? Have you ever used a laptop? The answer can be "Yes: But do you know that the first computer was made about 70 years ago? It was large enough to take up a living room. It was named ENIAC- Electronic Numerical Intergrator and Calculator.


Thanks to the development of technology, computers are becoming smaller and smaller.The first personal computer was introduced in the 1970s by MITS, Apple Computer, and IBM. They didn't look exactly like now but they were surely revolutionary at the time.


Scientists are finding ways to make computers as smaller and slimmer as possible. Some of today's computers are small enough to carry out in pockets. But technology doesn't stop there. They will continue to bring out smaller computers. Who knows? Maybe one day we will not need big desktops or laptops. We may need a computer chip that is as small as a fingernail.


1…… The first computer was made about 70 years ago.


2…… The ENIAC was small enough to carry around.


3…… MITS, Apple Computer, and IBM were the first to introduce personal computers.


4. ..…Today computers are not as small and slim as the previous ones.


5…….Fingernail-size computer chips may be a new revolution one day.

2

1. T (True)

  • trong bài: "...the first computer was made about 70 years ago" (Dòng 3).
  • Kết luận: Giống y hệt bài đọc.

2. F (False)

  • trong bài: "It was large enough to take up a living room" (Nó đủ lớn để chiếm cả một phòng khách).
  • Kết luận: Bài bảo nó to như cái phòng, mà câu hỏi bảo "đủ nhỏ để mang đi" là sai quá sai rồi.

3. T (True)

  • trong bài: "The first personal computer was introduced in the 1970s by MITS, Apple Computer, and IBM" (Đoạn 2).
  • Kết luận: Đúng tên 3 "ông lớn" này rồi.

4. F (False)

  • trong bài: "computers are becoming smaller and smaller" (máy tính ngày càng nhỏ hơn).
  • Kết luận: Câu hỏi bảo "không nhỏ và mỏng bằng ngày xưa" là ngược đời, công nghệ phải tiến lên chứ!

5. T (True)

  • trong bài: "Maybe one day... a computer chip that is as small as a fingernail" (Đoạn cuối).
  • Kết luận: Đây là dự đoán về tương lai, khớp với ý của bài.
16 tháng 4

1.T

2.F

3.T

4.F

5.T

15 tháng 4

Behind: đằng sau

Between: ở giữa

Near: gần

Opposite: đối diện

15 tháng 4

Behind: đằng sau, between: ở giữa, near: gần, opposite: đối diện

16 giờ trước (23:20)

dịch:
đằng sau
giữa
gần
đối diện(bạn vt nhầm từ)

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