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Tạo tài khoản

Đây là bản xem thử. Phiên bản đầy đủ trong ứng dụng có bài tập, AI chấm ngay và theo dõi tiến độ học.

Bài học

Should/ought to: loi khuyen va ranh gioi voi must/have to

Muc tieu bai hoc

Sau bai hoc nay, em dung dung should/ought to de dua ra loi khuyen, phan biet duoc loi khuyen (should) voi nghia vu bat buoc (must/have to), va dung dung shouldn't cho loi khuyen phu dinh.

Kien thuc nen can co

Bai truoc em da hoc must (nghia vu tu dat ra) va have to (nghia vu tu ben ngoai) - ca hai deu mang tinh bat buoc. Should nhe hon han: no la mot loi khuyen, nguoi nghe khong bat buoc phai lam theo.

Cau hoi khoi dong

Quang bi dau bung sau khi an qua vat o cong truong. Linh noi: "You should see the school nurse." Day co phai mot menh lenh khong? Neu Quang khong den phong y te, Quang co vi pham noi quy nao khong?

Should va ought to: loi khuyen, khong phai bat buoc

Should + V nguyen mau dien ta mot loi khuyen, mot y kien ca nhan ve dieu nen lam. Ought to mang nghia tuong duong nhung trang trong hon, it dung trong van noi hang ngay: ought to see a doctor gan nhu should see a doctor, chi khac muc do trang trong. Phu dinh shouldn't (should not) khuyen khong nen lam mot viec gi do.

Diem khac biet cot loi voi must/have to: should khong mang tinh bat buoc - nguoi nghe co quyen khong lam theo ma khong vi pham quy dinh nao ca. Hoc sinh hay nham should voi must khi dich cau tieng Viet co tu nen hoac phai, nhung phai trong tieng Viet doi khi chi la mot loi khuyen manh, khong phai mot quy dinh that su co che tai.

Ve muc do trang trong, should xuat hien ca trong van noi va van viet, con ought to nghieng ve van viet trang trong hoac loi khuyen tu mot nguoi co uy tin (bac si, giao vien, chuyen gia) hon la ban be noi chuyen thoai mai voi nhau. Vi du, mot bac si co the viet trong don thuoc "Patients ought to rest for three days", trong khi mot nguoi ban than se noi ngan gon "You should rest for a few days." Ca hai deu la loi khuyen, khong ai bat buoc phai nghe theo, va ca hai deu khac han must/have to o cho khong kem theo mot che tai hay hau qua chinh thuc nao neu khong lam theo.
So do bon buoc quyet dinh giua loi khuyen should va nghia vu bat buoc must/have to.1Doc ky cau tiengVietTu 'phai' khong luonla must - can xet xemco quy dinh cu thekhong.2Co quy dinh, luatcu the khong?Neu co (noi quy, luatgiao thong), chonhave to hoac must.3Chi la y kien,goi y?Neu chi la loi khuyentot cho suc khoe hoachoc tap, chon should.4Kiem tra hau quakhi khong lamtheoKhong theo should thikhong bi phat; khongtheo must/have to cothe vi pham quy dinh.
Buoc cuoi la cach kiem tra nhanh nhat: hoi xem khong lam theo thi co bi phat khong.
Ví dụ
Chon should hay must cho mot loi khuyen suc khoe
  1. 1

    Linh khuyen Quang: "You ___ drink more water and rest for a while." Bay o day la nghi rang nen luon phai dich thanh must.

  2. 2

    Day la mot loi khuyen ve suc khoe, khong phai mot quy dinh bat buoc - khong co luat le nao buoc Quang phai uong nuoc, nen dung should.

  3. 3

    (a) should, (b) must, (c) have to, (d) has to - loai (b),(c),(d) vi ca ba deu mang tinh bat buoc, trong khi cau chi la goi y cua Linh, khong co che tai neu Quang khong lam theo.

  4. 4

    should.

  5. 5

    Should dung cho moi loi khuyen khong kem che tai. Neu cau doi thanh "the school nurse says students must rest in the sick room for at least 30 minutes" thi must lai dung, vi day la chi dinh cua y te truong, mang tinh bat buoc.

Ví dụ
Sua loi shouldn't/mustn't
  1. 1

    An viet: "My teacher says I mustn't stay up too late before an exam, or I'll feel tired." Dieu An muon noi la mot loi khuyen, khong phai mot quy dinh bi cam chinh thuc.

  2. 2

    Mustn't dien ta mot dieu bi cam nghiem ngat (nhu luat hoac noi quy); o day giao vien chi dang khuyen, nen phai dung shouldn't.

  3. 3

    "My teacher says I shouldn't stay up too late before an exam, or I'll feel tired."

  4. 4

    My teacher says I shouldn't stay up too late before an exam, or I'll feel tired.

  5. 5

    Mustn't = bi cam, vi pham neu lam; shouldn't = khuyen khong nen, khong vi pham gi neu van lam, chi la khong khon ngoan.

Ví dụ
Dung ought to dung dang
  1. 1

    Mai muon viet mot cau trang trong khuyen ca lop giu ve sinh chung, dung ought to. Bay o day la chia sai dang dong tu theo sau ought to.

  2. 2

    Ought to di voi to + V nguyen mau, khac should khong co to: "Students ought to keep the classroom clean."

  3. 3

    (a) ought to keep, (b) ought keep, (c) ought to keeps, (d) should to keep - loai (b) vi thieu to; loai (c) vi sau ought to phai la dong tu nguyen mau, khong chia; loai (d) vi should khong bao gio di kem to.

  4. 4

    Students ought to keep the classroom clean.

  5. 5

    Should + V nguyen mau, khong to; ought to + to + V nguyen mau, co to - hai cau truc gan nghia nhung khac hinh thuc, khong duoc tron lan.

Luyen tap co huong dan

Luyen tap doc lap

Loi thuong gap

Bay pho bien nhat: dich tu nen hoac phai sang tieng Anh va luon chon must, du cau chi la mot loi khuyen khong kem che tai. Truoc khi chon modal, hay tu hoi: neu khong lam theo, nguoi noi co bi phat hay vi pham quy dinh nao khong? Neu khong, dung should, khong phai must.

Tom tat

Should/ought to dua ra loi khuyen, khong bat buoc nguoi nghe phai lam theo; shouldn't khuyen khong nen lam mot dieu gi do. Should + V nguyen mau (khong to), ought to + to + V nguyen mau (co to). Diem mau chot: neu khong lam theo ma khong vi pham quy dinh nao, day la should, khong phai must/have to.

Chuong tiep theo chuyen sang can va mustn't: em se hoc cach noi ve dieu duoc phep lam va dieu bi cam, roi ap dung ca hai vao quyen cua tre em.