Tiêu đề Second Semester Final Exam GRADE 9 - Test 2 - Form 2025.docx ✅

C. its skills for create a better world D. they skills to creates a better world Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 24 to 28. How Device Swarms Are Replacing Individual Gadgets Today, we see a big change in technology. In the past, people had one big computer. Now, we have many small devices (24)_________ work together. These small devices are like a team. The phones, watches, and speakers that talk to each (25)_________ are called "mesh devices." They share information fast. My home has smart lights (26)_________ a smart door lock. They work as one system to keep my house safe. In the modern world, technology is (27)_________ in the blink of an eye. Small devices now connect in new ways. There are many mesh devices in stores today. You can buy them for your home or office. These new mesh systems are very (28)_________. They help us do many things at the same time. What is good about mesh devices? They are small. They are cheap. They work together. They make our lives easier. The future of technology is not one big machine. It is many small devices working as a team. This is the mesh revolution. Question 24:A. who B. that C. whom D. when Question 25:A. the others B. others C. other D. another Question 26:A. so B. but C. for D. and Question 27:A. evolving B. changing C. growing D. advancing Question 28:A. complicated B. expensive C. unreliable D. efficient Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 29 to 33. Underground Fungal Networks That Connect Ecosystems Trees and plants talk to each other using tiny threads in the soil. These threads are fungi. Scientists call this network "mycorrhizal fungi." The word "mycorrhizal" means "fungus-root." These fungi connect to plant roots and make a big network under the ground. They help plants get water and food from the soil. This fungi network works like the internet for plants. Big trees can send food to small trees through these connections. When one tree is sick, it can send warning signals to other trees. Then other trees make special chemicals to protect themselves. Some scientists call this system the "Wood Wide Web." This is a funny name that sounds like "World Wide Web" for computers. These fungi help about 90% of all land plants. They exist in forests, grasslands, and even gardens. The fungi networks are very old. They have been on Earth for more than 400 million years. They help make the soil good. As a result, plants grow better with these fungi friends. We must protect these fungi networks. When we cut down forests or use too many chemicals, we hurt them. If we care for them, healthy fungi help plants and trees grow strong. The mycorrhizal internet shows us that nature is connected. All living things work together in a big system.