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    Chào mừng quý vị đến với Thư viện Bài giảng điện tử.

    Quý vị chưa đăng nhập hoặc chưa đăng ký làm thành viên, vì vậy chưa thể tải được các tư liệu của Thư viện về máy tính của mình.
    Nếu đã đăng ký rồi, quý vị có thể đăng nhập ở ngay ô bên phải.

    Bài 46. Khả năng kì diệu của lá cây

    Tham khảo cùng nội dung: Bài giảng, Giáo án, E-learning, Bài mẫu, Sách giáo khoa, ...
    Nhấn vào đây để tải về
    Hiển thị toàn màn hình
    Soạn thảo trực tuyến
    Báo tài liệu có sai sót
    Nhắn tin cho tác giả
    (Tài liệu chưa được thẩm định)
    Nguồn:
    Người gửi: Nguyễn Thị Tường Vi (trang riêng)
    Ngày gửi: 01h:25' 02-11-2008
    Dung lượng: 7.1 KB
    Số lượt tải: 257
    Số lượt thích: 0 người
    Nguyễn Thị Tường Vi - Khoa GD Tiểu học, trường ĐH Sư phạm Huế
    Bài tập
    Câu 1: Bài 46: Khả năng kì diệu của lá cây
    Câu 1. Em hãy chọn câu trả lời thích hợp
    a. Quá trình quang hợp của lá diễn ra vào ban ngày.
    b. Thoát hơi nước không có ích lợi gì cho lá cây.
    c. Nếu thiếu khí oxi lâu ngày, cây sẽ chết.
    Câu 2: Bài 46: Khả năng kì diệu của lá cây
    Câu 2. Em hãy đánh dấu vào câu đúng. Quá trình hô hấp của lá cây diễn ra vào:
    a. ban đêm
    b. ban ngày
    c. suốt ngày đêm
    Câu 3: Bài 46: Khả năng kì diệu của lá cây
    Câu 3. Em hãy nối câu trả lời tương ứng
    a. Hơi nước
    b. Khí ô-xi hấp thụ
    c. Khí các-bô-níc thải ra
    d. Khí các-bô-níc hấp thụ
    e. Khí ô-xi thải ra
    Quá trình hô hấp Quá trình quang hợp 1 2 3 4 5 Câu 4: Bài 46: Khả năng kì diệu của lá cây
    Câu 4. Em hãy điền từ thích hợp vào ô trống
    Lá cây có nhiều ích lợi cho con người. Ví dụ như: - ở hình 1, lá ||chuối ||được dùng để ||gói bánh||. - ở hình 2, lá ||tranh|| được dùng để ||lợp nhà||. - ở hình 3, lá ||cọ|| được dùng để ||làm nón||. - ở hình 4, lá ||ngải cứu|| được dùng để ||làm thuốc||. Hình 1 Hình 2 Hình 3 Hình 4
     
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