Practice test 50 part I. Grammar and vocabulary choose the best answer A, B, c or d for each of the following sentences
Question 4: Choose the best answer A, B, C or D to complete each sentence
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Câu 2, NHÓM 10 - QUY LUẬT PHỦ ĐỊNH CỦA PHỦ ĐỊNH
- Điều hướng trang này:
- PART 4: READING COMPREHENSION Question 1: Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions (10 points)
| Question 4: Choose the best answer A, B, C or D to complete each sentence. (5 points)
1. The Wilsons have found it terribly hard to make _______ meet ever since the both lost their jobs. A. ends B. strings C. coins D. limits 2. ________, the examinees knew it was time to stop. A. Hearing the bell B. When heard the bell C. To hear the bell D. To have been heard the bell 3. What happened_____ their car broke down on the motorway so they didn’t get to Jo’s wedding on time. A. to be that B. being that C. was that D. to that 4. At first, Mark thought it would be great to build his own ranch, but he was forced to _______________ the idea when the bank refused to give him a loan. A. depart B. leave C. cease D. abandon 5. The neighbours said they hadn’t got a _______________ who could have broken into our garage. A. clue B. view C. point D. hint 6. Out of the water ______. A. jumped the penguins B. the penguins jumped C. did the penguins jump D. the penguins jump 7. We have to __________ the hard times hoping that things will change for the better in the future. A. maintain B. endure C. persist D. outlive 8. His parents have always wanted Phillip to set a good _______________ to his younger brothers both at school and at home. A. form B. model C. pattern D. guidance 9. My classmate,________ father has been in hospital for a month, looked depressed this morning. A. which B. who C. of whom D. whose 10. Nobody is ready to go,__________? A. are they B. isn’t he C. is he D. aren’t they. PART 4: READING COMPREHENSION Question 1: Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions (10 points) Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction. Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth. The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail. tải về 168.5 Kb. Chia sẻ với bạn bè của bạn:
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