結(jié)構(gòu) be（is+am+are）+動(dòng)詞ing形式

動(dòng)詞-動(dòng)詞ing形式變化規(guī)則

1：一般情況下，直接加ing? cook-cooking? ? ? ? ? ? ? ? ? ? eat-eating

2: 以不發(fā)音e結(jié)尾的，去e再加ing make -making? ? ? ? ? ? taste -tasting

3:重讀閉音節(jié)結(jié)尾的，雙寫末尾的輔音字母 再+ing

get-getting? ? forget-forgetting? ?sit-sitting

skip-skipping? ? shop-shopping? ? ?stop-stopping

begin-beginning? ? ?run-running

swim-swimming

句型結(jié)構(gòu)

肯定句 ：主語(yǔ)+be動(dòng)詞+動(dòng)詞ing+其他

they are walking in the park

she is reading in the classroom

否定句：主語(yǔ)+be動(dòng)詞+not+動(dòng)詞ing+其他

they are not / aren't working in the park

she is not /isn't reading in the classroom

一般疑問句：Be動(dòng)詞+主語(yǔ)+動(dòng)詞ing+其他

Are they working in the park?

is she reading in the classroom?

特殊疑問句：特殊疑問句+be動(dòng)詞+動(dòng)詞ing+其他

what are they doing in the park?

who is reading in the classroom