Đề thi Olympic Tiếng Anh lớp 8 vòng 3 năm 2013 - 2014 - Đề thi Tiếng Anh qua mạng (IOE) lớp 8 có đáp án

Đề thi Tiếng Anh qua mạng (IOE) lớp 8 có đáp án

Đề thi Tiếng Anh qua mạng (IOE) lớp 8

Chỉ còn vài ngày nữa là các bạn học sinh lớp 8 bước vào kì thi Olympic Tiếng Anh, đây là thời điểm quan trọng để các bạn ôn tập và củng cố lại kiến thức, kỹ năng. Hiểu được điều đó chúng tôi đã sưu tầm và xin được gửi tới bạn: Đề thi Olympic Tiếng Anh lớp 8 vòng 3 năm học 2013 - 2014.

Bạn cần đăng ký tài khoản VnDoc Pro để làm bài trắc nghiệm này! Tìm hiểu thêm

Mua VnDoc PRO 79.000đ

Câu 1:
The diagram above shows a portion of a DNA molecule that codes for a normal condition and one that codes for an abnormal condition.
The difference between the normal condition DNA and the abnormal condition DNA shown in section two is called?
- A. a replication
- B. a translation
- C. a mutation
- D. a transcription
Câu 2:
The diagram above represents part of the horse fossil record from three time periods. It includes illustrations of the hooves and teeth of horses from each time period.
Which of the following statements is best supported by the horse fossil record?
- A. The horse has been a carnivore.
- B. The horse has changed over time.
- C. The horse has many common ancestors.
- D. The horse has lived in the same ecosystem.
Câu 3:
The diagram above represents a diver's motion from the top of a high diving board into a pool of water.
At which labeled point does the diver have the least potential energy?
- A. 1
- B. 2
- C. 3
- D. 4
Câu 4:
Which of these have a positive charge and are found in the nucleus of an atom?
- A. Neutrons
- B. Protons
- C. Electrons
- D. Elements
Câu 5:
The process of iron combining with oxygen to form rust is considered a chemical change because rust has
- A. properties that differ from both iron and oxygen
- B. the same chemical composition as iron
- C. a very high melting point
- D. greater chemical reactivity than oxygen
Câu 6:
A beam bridge supporting a toy truck is shown in the diagram above.
When an object pushes down on this bridge, the bottom edge experiences a force that tends to pull it apart as shown.
What is the type of force labeled X?
- A. compression
- B. shear
- C. tension
- D. torsion
Câu 7:
The diagram above shows a balance being used to measure a burning candle in a sealed glass ball before and after the burning is complete.

As the candle burns, the size of the candle decreases, but the reading on the balance does not change.
Which of the following is demonstrated by this experiment?
- A. Energy is converted to mass when the candle is burned.
- B. Smoke particles have more mass than molecules of candle wax.
- C. Kinetic energy is converted to potential energy when the candle is burned.
- D. The total mass of the system is constant.
Câu 8:
To create a graph representing the average growing time of different plants in the science lab, which program should Mika use?
- A. Database
- B. Spreadsheet
- C. Telecommunications
- D. Word processing
Câu 9:
To get the profit for each activity, Jose multiplied the expected sales by the sale price and then subtracted the cost of the materials needed.
The formula in cell E3 would be
- A. = (B3*C3)-D3
- B. = (D3*B3)+C3
- C. = B3*(C3-D3)
- D. = B3+(C3*D3)
Câu 10:
CH₄ + 2O₂ → CO₂ + 2H₂O
In the reaction above, the products are
- A. CH₄and 2O₂
- B. CH₄ and CO₂
- C. 2O₂ and 2H₂O
- D. CO₂ and 2H₂O