建議用時(shí)：10分鐘
總分：30（共6題，5分/題）
To find out what kind of soil was best for planting, the students conducted an experiment in the science lab.
What does the word “conducted” mean in this sentence?
The satellite was launched into space last year. Since then, it has continued to orbit the Earth, pulled gently by gravity but never falling, moving in a large circle high above the clouds.
What does the word “orbit” most likely mean?
The wind started as a gentle breeze but quickly turned violent. A spinning column of air touched the ground and tore through buildings, leaving a trail of debris. Warning sirens blared, and people rushed into shelters.
The town was being hit by a ______.
When an octopus senses danger, it releases a dark cloud of ink into the water. This blocks the view of the predator, giving the octopus time to escape. The ink doesn’t hurt the attacker, but it creates a chance to hide.
This is an example of a ______.
建議用時(shí)：20分鐘
總分：70（共10題，7分/題）
The Class Garden Project
Sasha sat at her desk, nervously twisting her pencil. Her teacher, Mr. Lee, had just announced that someone would need to lead the class garden project this spring. Sasha loved plants and dreamed of becoming a botanist one day. She had read every book in the school library about seeds, soil, and sunlight. But leading the project? That meant talking in front of the class, organizing groups, and making sure everyone followed the schedule. That sounded scary.
At lunch, her best friend Nora encouraged her. “You know the most about gardening,” she said. “And I’ll help you if you need it.” Sasha smiled, but she still wasn’t sure. What if she messed up? What if the plants didn’t grow?
That night, she told her parents about the project. Her mom said, “Being a leader doesn’t mean doing everything perfectly. It means trying, learning, and helping others succeed.” Her dad added, “You don’t have to be fearless. Just be willing.”
The next day, Sasha raised her hand. Her voice shook a little, but she said clearly, “I’d like to lead the garden project.” Mr. Lee nodded with a warm smile. Over the next few weeks, Sasha created planting plans, set up a watering schedule, and made sure everyone had a job. When classmates had ideas, she listened. When someone forgot a task, she gently reminded them. The garden began to bloom—and so did Sasha’s confidence.
What is the main idea of this story?
How Animals Use Their Senses to Survive
All animals have senses that help them survive, but not all animals sense the world the same way. Humans mostly rely on sight and hearing, but many animals use other senses to find food, stay safe, and communicate.
For example, snakes use a special organ to “see” the heat given off by warm-blooded animals. This helps them hunt even in total darkness. Some fish have a line of sensors along their sides that pick up vibrations in the water. These sensors help them detect movement nearby, such as a predator swimming close.
Bats use a system called echolocation. They make high-pitched sounds that bounce off objects and return to their ears. This helps bats build a mental map of their surroundings and find flying insects to eat—even in the dark.
Even animals that do not seem “smart” often have highly developed senses. Moths can smell each other from far away using their antennae. Dogs have powerful noses too—they can be trained to detect missing people, sniff out diseases, or find illegal items at airports.
Scientists study animal senses not only to learn how animals live, but also to invent new tools for humans. For example, sonar systems used in ships were inspired by echolocation in bats and dolphins. Nature is full of clever solutions—we just have to pay attention.
How do snakes find warm-blooded animals in the dark?