四、按要求完成下列各题。
1. These are green beans.（对画线部分提问）
are ?
2. This is a potato.（改为复数句子）
are .
3. What is this?（改为复数句子）
these?
4. I have 18 pigs.（对画线部分提问）
pigs do you have?
5. What are those?（用 carrots 回答）
carrots.

1. What; these
2. These; potatoes
3. What; are
4. How; many
5. They; are

1. 本题对事物提问，画线部分green beans是物品，要用特殊疑问词What引导问句，原句的指示代词these保留，因此两个空分别填What、these。
2. 本题考查单数句改复数句，指示代词This的复数形式是These，可数名词potato的复数变化为potatoes，因此两个空分别填These、potatoes。
3. 本题考查单数句改复数句，疑问词What不变，be动词is要改为对应的复数形式are，因此两个空分别填What、are。
4. 本题对可数名词的数量提问，画线部分是数词18，后面pigs是可数名词复数，要用How many来提问数量，因此两个空分别填How、many。
5. 本题考查特殊疑问句的回答，问句中those是指示代词复数，回答时要用They指代，搭配be动词are，因此两个空分别填They、are。

五、阅读短文,判断下列句子正(T)误(F)。
Hi! I'm Lily. It's a cloudy day. I go to the farm with my mother. I wear green shoes and a white hat. My mother wears a hat too. It's yellow. There are many animals on the farm. Hens(母鸡) and ducks are everywhere. These are twelve pigs. They are very fat. Those are cows and horses. There are seven cows and five big horses. The cows give us milk. It's healthy. The horses can run fast. I ride a horse. It's fun. There are some vegetables too. The tomatoes are red and fresh. My mother likes them very much. I like tomatoes too. They are delicious. We pick lots of tomatoes.
()1. Today is sunny. Lily goes to the zoo.
()2. Lily's shoes are green. Her hat is blue.
()3. There are seven cows on the farm.
()4. Lily's mother rides a horse.

1. F 2. F 3. T 4. F