NEW TREASURE Stage3の英語手順書・実験方法読解40問｜first・before・unless・受動態【全訳】

Instructions for submitting a presentation: First, save your slides as a PDF. Do not submit the editable file unless your teacher has asked for it. Next, check that your name and class appear on the first page. Then open the school submission page and select the correct project. Upload your PDF, which must be smaller than 10 MB. Before clicking Submit, open the preview and check every page. If the preview is incomplete, replace the file and check it again. After submission, the system will display a confirmation number. Keep this number until the project has been graded. The deadline is Thursday at 5 p.m. Uploading a file without clicking Submit does not complete the process.

A class prepared a safe seed-observation project using two trays and twenty bean seeds. First, ten seeds were placed on a damp paper towel in Tray A, and another ten were placed on a damp paper towel in Tray B. Both trays were kept in the same room. Each day, the students checked whether the towels were still damp. If a towel was dry, the students added a small amount of water. They recorded the number of seeds that had sprouted, not the total number of leaves. After seven days, eight seeds had sprouted in Tray A and seven in Tray B. The class did not conclude that one tray was better, because the soil-free conditions were not identical in every detail. The teacher asked them to repeat the observation before drawing a firm conclusion.

For a classroom design challenge, each team had to create a paper bridge between two desks. The desks had to remain twenty centimeters apart. Teams were given three identical sheets of paper and were not allowed to use glue. First, students made Design A using one flat sheet. They placed small identical counters on the bridge one at a time and recorded the maximum number held before the paper bent enough to touch the floor. Design A held four counters. The students then folded another sheet into a zigzag shape to create Design B. Under the same desk spacing, Design B held seven counters. They finally made Design C using a rolled sheet, which held five counters. The teacher reminded the class that these were results from one trial for each design, not proof that the same ranking would always appear.

A school cooking club wrote instructions for a simple fruit salad that did not require heating. Before preparing the food, students had to wash their hands and check whether any participant had a food allergy. An adult supervisor checked the ingredients. First, the fruit was washed thoroughly. Next, the supervisor prepared small pieces of apple and banana with the appropriate equipment. Students placed the pieces in clean bowls and added a little yogurt only if everyone who would eat the salad could safely have it. Otherwise, they served the fruit without yogurt. The bowls were covered and kept chilled until serving. The club’s instructions said that students should not claim the salad was safe for everyone without checking individual dietary needs. At the end, the work area was cleaned.