Giai bt anh 7 trang 30 tap 1

2 câu trả lời

2. Past simple or present perfect? Put the verb in brackets into the correct form.

1. They cleaned the beach one week ago

Do có “one week ago” là dấu hiệu của quá khứ đơn nên chỉ thêm “ed” vào sau động từ thôi

2. They have collected hundreds of book so far

Do có “so far” là dấu hiệu của HTHT nên phải có have và thêm ed vào sao động từ, và việc này cũng kéo dài đến hiện tại

3. Collected

Do việc sưu tầm tem của thanh niên này đã kết thúc khi con nhỏ nên câu này chia theo thể QKĐ

4. Has flown/went

Hành động của cô này đã diễn ra nhiều lần trong quá khứ với lại có “many times” nên chia theo Hiện Tại Hoàn Thành, do chủ từ là “She” số ít nên chia thành “has”/Năm rồi thì cô ấy đi tàu hỏa nó cũng đã kết thúc rồi nên chia theo thể QKĐ “went”

5. Have you “ever” seen/saw

Đây là câu hỏi với từ “ever” nên thêm “have” phía trước/Thanh niên này đã nhìn thấy con voi vào tháng trước nên nó đã kết thúc và sử dụng QKĐ

Mình không giỏi Anh lắm có gì sai sót các bạn cứ sửa giúp mình nhé!

À mà đây là sách VNEN nhé bạn

2. Past simple or present perfect? Put the verb in brackets into the correct form.

1. They cleaned the beach one week ago

Do có “one week ago” là dấu hiệu của quá khứ đơn nên chỉ thêm “ed” vào sau động từ thôi

2. They have collected hundreds of book so far

Do có “so far” là dấu hiệu của HTHT nên phải có have và thêm ed vào sao động từ, và việc này cũng kéo dài đến hiện tại

3. Collected

Do việc sưu tầm tem của thanh niên này đã kết thúc khi con nhỏ nên câu này chia theo thể QKĐ

4. Has flown/went

Hành động của cô này đã diễn ra nhiều lần trong quá khứ với lại có “many times” nên chia theo Hiện Tại Hoàn Thành, do chủ từ là “She” số ít nên chia thành “has”/Năm rồi thì cô ấy đi tàu hỏa nó cũng đã kết thúc rồi nên chia theo thể QKĐ “went”

5. Have you “ever” seen/saw.

_study well_

@bttb

Câu hỏi trong lớp Xem thêm

MICROWAVING Microwaving is a method of cooking where food is bombarded by microwaves, usually within an appliance called a microwave oven which excite the water, fat and sugar molecules, thereby heating (cooking) both the outside and center of the food at the same time. (1)………………… (A common myth is that a microwave oven cooks from the center of the food outward. This appears to happen because heat generated at the surface escapes more readily from the surface of the food into the surrounding air.) One advantage of microwaving is that small amounts of food can be heated very quickly, making it useful for reheating leftovers. The disadvantage is that food which is microwaved does not undergo some of the chemical reactions, such as browning, which makes the food visually attractive. Primitive microwave ovens often do not cook evenly, leading to a concern that bacteria easily killed by more traditional cooking methods may survive the quick cooking time in "cold spots", though the food item as a whole is cooked to a safe average temperature. (2) …… Some high-end microwave ovens are combined with a convection oven which basically cook the food using microwave and hot air simultaneously to achieve both the fast cooking time and browning effect. (3) ………………… However microwave ovens are used in some fast food chains and special microwave bags are available for cooking fowl or large joints of meat. Professional chefs generally recommend using microwaves for a limited set of tasks, including: melting fats (such as butter) and chocolate, cooking grains like oatmeal and grits, cooking rice, thawing frozen meats and vegetables before cooking by other methods and quickly reheating already-cooked foods. Using a microwave to boil water is potentially dangerous, due to superheating. In a microwave, water can be raised quickly to a temperature above the boiling point before major bubbles form, especially if it is purified and in a very clean glass vessel. (4) ………………… This effect is rare, even for scientists who try to deliberately recreate it, and any seed whatsoever for boiling is likely to prevent the problem. Boiling water with, for instance, a teabag already in it will prevent any dangers by providing a seed, as will using a mug that is not perfectly clean. The risk greatly increases when water has already been boiled once in the same container. This situation can occur if the user of the oven boiled the water once, forgot about it, then came back later to boil it again. The first time the water boils, the seed bubbles (microscopic bubbles of air around which larger steam bubbles grow) are used up and largely eliminated from the water as it cools down. When the water is heated again, the lack of seed bubbles causes superheating, and a risk of a steam explosion when the water's surface is disturbed. Placing something in the water before heating can mostly alleviate this risk. If you are planning to mix something with the water, say tea or hot chocolate, adding it before heating will insure that the water boils. Otherwise, placing a wood object, for instance a chopstick, in the water before heating will also work. Care should be taken when removing heated water from a microwave. Make sure that the hands are protected from possible liquid boil-over, place the container on a level, heat-proof surface and stir liquid with a warm spoon. Also, never add powdered substances (such as instant coffee or cocoa mix) to the container taken from the microwave, due to the addition of all those seed bubbles and the potential for violent, spontaneous boiling. (5) ………………… Metal objects, such as metal utensils, in a microwave oven can lead to dangerous situations. Metals do not absorb microwaves effectively. Instead, metals reflect microwaves, thereby preventing the latter from reaching the food. (6) ………………… Thin metal layers, such as metal foil and mugs with metal trim can melt or burn due to the strong electrical currents that are generated in metal objects. However, small solid metal objects, such as spoons, in combination with a large amount of absorbing food or liquid, normally do not lead to problems. This article is licensed under the GNU Free Documentation License. It uses material from the Original Wikipedia article.

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