()4. are apples. They are red.

A.That
B.This
C.These

4. be动词用are，所以空格处应使用复数形式的指示代词these(这些)。故选C。

四、选出与下列对话相符的图片。
B.
()1. —What are those? —They're oranges.
()2. —What are these? —They are pears.
()3. —Look at the apples! —They are red.
()4. —Look at the pumpkin! —It's so big.

1~4 C D B A
1. oranges(橙子)与图片C相符。
2. pears(梨)与图片D相符。
3. apples(苹果)与图片B相符。
4. pumpkin(南瓜)与图片A相符。

五、根据图片及句意，选择合适的单词，将下列对话补充完整。（填序号）
①pears ②What ③those ④these ⑤apples ⑥are
A: What are ?
B: They .
A: are ?
B: They are .

③⑥①②④⑤
根据图片中梨和苹果以及手的位置可推知，句意为“那些(those)是什么”“它们是(are)梨(pears)”“这些（these）是什么（what）”“它们是苹果(apples)”。

六、阅读短文，判断句子正(T)误(F)。
Hello. I'm Liu Tao. I like apples. They are round(圆的). They are red. They are sweet. Look! I have five apples. This is my cousin, Lingling. She has four oranges. The oranges are orange. They are juicy(多汁的).
()1. The apples are round. ()2. Liu Tao has four apples.
()3. Lingling has five oranges.
()4. Liu Tao likes oranges.
()5. The oranges are juicy.

1~5 T F F F T
1. 根据“I like apples. They are round.”可知，苹果是圆的，故本题正确。
2. 根据“I'm Liu Tao ... I have five apples.”可知，刘涛有五个苹果而不是四个，故本题错误。
3. 根据“This is my cousin, Lingling. She has four oranges.”可知，玲玲有四个橙子而不是五个，故本题错误。
4. 根据“I'm Liu Tao. I like apples.”可知，刘涛喜欢苹果而不是橙子，故本题错误。
5. 根据“The oranges are orange. They are juicy.”可知，橙子是多汁的，故本题正确。