Question

    One day, you open the fridge and find some moldy (发霉的) food. But before you can throw it away, your mother stops you. She doesn't want to waste food. She cuts off the moldy part and eats the rest. Is it safe to do this?

Mold (霉菌) can grow on almost all kinds of food. Mold is usually green, white, black or gray. Mold makes food soft and changes its color. Moldy food tastes quite bad and it's not safe to eat.

If you find mold in soft food, just throw it away. Soft food, such as bread, tomatoes and hot dogs, usually contain (包含) water. This allows mold to easily grow below its surface. Bacteria (细菌) also grows along with it.

But it's easy to remove mold from hard food. The mold can't grow very deeply inside this kind of food. According to the BBC, you should cut about 2.5 cm around and below the mold and remove it.

It's OK to cut the moldy parts out of hard, food and eat the rest. But if the food is completely covered with mold, you should still throw it away. Most kinds of mold are bad for us. But some kinds of mold can be used to make food. For example, penicillin(青霉菌) can be used to make many types of cheeses, such as blue cheese. These cheeses are safe to eat and they're quite delicious as well.

根据短文内容，判断正(T)误(F) .

1.When you find the bread turns green, it means mold grows on it. ______

2.If you find mold on a tomato, you can cut the bad part and eat the rest. ________

3.From this passage, we know mold grows more deeply inside soft food than inside hard food. ________

4.You can eat hard food even if it is completely covered with mold. _________

5.It's safe to use a kind of mold, penicillin to make many types of cheeses. __________

Answer

1.T

2.F

3.T

4.F

5.T

【解析】

文章大意：本文是一篇说明文，文章主要介绍了霉菌的颜色等特征，并探讨了人们是否能继续食用发霉的食物等问题。

1.

理解判断题。根据Mold is usually green, white, black or gray. Mold makes food soft and changes its color. 霉菌通常为绿色、白色、黑色或灰色。霉菌使食物变软，改变食物的颜色。由此可知，本句叙述When you find the bread turns green, it means mold grows on it.当你发现面包变绿了，说明上面长霉了。符合文意，故答案为T。

2.

理解判断题。根据If you find mold in soft food, just throw it away. Soft food, such as bread, tomatoes and hot dogs, usually contain water. This allows mold to easily grow below its surface. Bacteria also grows along with it. 如果你在松软的食物里发现霉菌，就把它扔掉。面包、西红柿和热狗等软性食物通常都含有水分。这使得霉菌很容易在其表面下生长，细菌也随之生长。由此可知，如果你在你在软的事物中发现了霉菌，就切掉发霉的部分，吃剩下的，是错误的；所以本句叙述If you find mold on a tomato, you can cut the bad part and eat the rest. 如果你发现番茄上有霉菌，你可以把坏的部分切掉，吃掉剩下的。不符合文意，故答案为F。

3.

理解判断题。根据If you find mold in soft food, just throw it away…….This allows mold to easily grow below its surface. Bacteria also grows along with it. 如果你在松软的食物里发现霉菌，就把它扔掉。……这使得霉菌很容易在其表面下生长。细菌也随之生长。以及But it's easy to remove mold from hard food. The mold can't grow very deeply inside this kind of food. 但是从坚硬的食物上去除霉菌很容易。霉菌不能在这种食物里长得很深。可知霉菌在软性食物中比在坚硬的食物中生长得更深。所以本句叙述From this passage, we know mold grows more deeply inside soft food than inside hard food.从这篇文章中，我们知道霉菌在软性食物中比在坚硬的食物中生长得更深。符合文意，故答案为T。

4.

理解判断题。根据It's OK to cut the moldy parts out of hard, food and eat the rest. But if the food is completely covered with mold, you should still throw it away. 从坚硬的食物中切下发霉的部分，吃掉剩下的部分是可以的。但如果食物完全被霉菌覆盖，你还是应该扔掉。可知，即使是坚硬的食物被霉菌完全覆盖，你还是应该扔掉。所以本句叙述You can eat hard food even if it is completely covered with mold. 即使坚硬的食物被霉菌完全覆盖，你也可以吃。不符合文意，故答案为F。

5.

理解判断题。根据penicillin can be used to make many types of cheeses, such as blue cheese. These cheeses are safe to eat and they're quite delicious as well. penicillin可以用来制造许多种类的奶酪，比如蓝纹奶酪。这些奶酪吃起来很安全，也很美味。可知penicillin来制作多种奶酪是安全的。所以本句叙述It's safe to use a kind of mold, penicillin to make many types of cheeses. 使用一种霉菌，penicillin来制造多种类型的奶酪是安全的。符合文意，故答案为T。