新標(biāo)準(zhǔn)初中英語(yǔ)九年級(jí)(下):UNIT1 Chemical experiment

[00:02.99]3 Listen and order.
[00:07.30]You will hear Miss Wang give instructions on
[00:10.67]how to use a Bunsen burner.
[00:14.04]Listen to the instructions
[00:15.94]and number the pictures in the correct order.
[00:20.12]Number the steps 1-8.
[00:23.99]…………
[02:33.31]4 Listen and complete.
[02:37.19]In Activity 3,Miss Wang used several
[02:40.70]modal verbs to give the instructions.
[02:45.01]Listen to some of her instructions
[02:47.59]and write the modal verbs in the blanks.
[02:53.13]1 Now,you __make sure that the rubber tube
[02:58.40]is joined properly to the gas tap.
[03:02.66]2 Look at the gas tap.It __ be pointing east.
[03:10.20]3 You __ make sure that the match
[03:13.87]is poing away from you.
[03:17.31]4 OK,next,you __turn the gas tap
[03:22.95]to the 'On' position.
[03:23.91]