Hi BrokenBananaTantrums
Agree with Mrs Melons - a lot of sound groups there in the spelling. I'm just a Mum, but this is how I'd tackle it:
Banana (so the trick here is to teach only one 'n' and one 'a' no doubles - Banana - BA - NA - NA (I had DD2 pretend she was Lady MuckyMuck and weiring her dressing gown and her bath towel cape she danced around saying please bring me a BA-NA-NA in her poshest snobbiest voice.)
Drama
Panorama (so both of these words end -ama - then drama is DR + AMA and PAN -O - RAMA also spells as it sounds).
Partridge (ridge is a tricky sound - so this might have to incorporate writing the word out a few times as well - but once -idge is learned (part- ridge) is pretty easy.
Department store (well your DC probably knows what it is so should be able to spell it. - DE-PART-MENT & STORE (magic e making the 'o' a long sound).
Double
trouble - so this is learning 'ou' is a sort of 'uh' sound here - both words end -ouble - so it really is just a matter of adding the D or the TR in front (D - OUBLE or TR - OUBLE)
Enormous
Dangerous - these are -ous endings. Danger can be tricky because children don't always get the 'g' sound right and go for 'j' but again writing out the word - practicing saying it whilst you do so helps - either DAN - GER - OUS or DANG - ER - OUS. (DD2 prefered DANG - ER - OUS because it made her laugh and she seemed to remember it because it was funny). Enormous actually spells well phonetically: E - NOR - MOUS (and because you know the ending you know MOUS is just M + OUS).
Through
Thoroughly - these are the -ough family (possibly best to be taught with a whole list of -ough words and exploring the different ways it can sound - oooo - as in Through but 'oh' as in dough or 'uff' as in rough. But right now you're working with the oooo sound - so teach -ough can make 'oo' [but leave it obvious that it can make other sounds too] - 'Thr' may be tricky - but again writing it out and sounding it out will help - TH - R - OUGH. Thoroughly is therefore much the same principle - TH - OR (first two slurred together quickly) - OUGH - LY.
I agree with those who have suggested that there's a lot mixed up here - but if you tackle this over the week you have the words it can be done. Another feed on spelling had a great idea suggested by mrz - to break up the syllables in the word and write it out on cards/ paper and then put the word together. This reinforces spelling and pronunciation.
Finally if it is any concellation - I've had spelling lists like this too - where you jsut don't know where to start. I work on 3 things.
Writing (so getting them to practice writing out the word 3 times each at first and working on best penmanship)
Meaning (I don't see the point of learning a word if you don't know what it means - so we write sentences using the word properly as well - we also play a game of trying to use as many spelling words in a sentence as we can. We only had it once, but it can be really interesting to look up how old words are and where they're from - DD1 loves Viking and Saxon words and DD2 is into Roman words, probably because she's doing Romans at the moment).
Memory (we have practice tests and each word missed is written out 5 or 6 times first two tests, and then 10 times each subsequent test).
Just to be evil - every now and then when it is a difficult week, I may ask them about the word they're struggling with.
What I will say is both DDs learn their words for their tests, but only one has good recall of spelling weeks later.
HTH